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Scenix Lib IO OSI2 Serial Stdinc

	; *********************************************************************************
	; Assembler directives:
	;	high speed external osc, turbo mode, 8-level stack, and extended option reg.
	;
	;	SX18/20/28 - 4 pages of program memory and 8 banks of RAM enabled by default.
	;	SX48/52 - 8 pages of program memory and 16 banks of RAM enabled by default.
	;                
	;*********************************************************************************

IFDEF SX_Key 				;SX-Key Directives
  IFDEF SX18_20				;SX18AC or SX20AC device directives for SX-Key
		device	SX18L,oschs2,turbo,stackx_optionx
		SX_TYPE=0
  ENDIF
  IFDEF SX28				;SX28AC device directives for SX-Key		
		device	SX28L,oschs2,turbo,stackx_optionx
		SX_TYPE=0
  ENDIF
  IFDEF SX48_52_ES			;SX48BD/ES or SX52BD/ES device directives for SX-Key
		device	oschs,turbo,stackx,optionx
		SX_TYPE=1
  ELSE
    IFDEF SX48_52				;SX48/52/BD device directives for SX-Key
		device	oschs2
		SX_TYPE=1
    ENDIF
  ENDIF
		freq	50_000_000
ELSE  					;SASM Directives
  IFDEF SX18_20				;SX18AC or SX20AC device directives for SASM
		device	SX18,oschs2,turbo,stackx,optionx
		SX_TYPE=0
  ENDIF
  IFDEF SX28				;SX28AC device directives for SASM
		device	SX28,oschs2,turbo,stackx,optionx
		SX_TYPE=0
  ENDIF
  IFDEF SX48_52_ES			;SX48BD/ES or SX52BD/ES device directives for SASM
		device	SX52,oschs,turbo,stackx,optionx
		SX_TYPE=1
  ELSE
    IFDEF SX48_52			;SX48BD or SX52BD device directives for SASM
		device	SX52,oschs2  
		SX_TYPE=1
    ENDIF
  ENDIF
ENDIF

;*****************************************************************************************
; Macros
;*****************************************************************************************

	;*********************************************************************************
	; Macro: _bank
	; Sets the bank appropriately for all revisions of SX.
	;
	; This is required since the bank instruction has only a 3-bit operand, it cannot
	; be used to access all 16 banks of the SX48/52. For this reason FSR.4 (for SX48/52BD/ES)
	; or FSR.7 (SX48/52bd production release) needs to be set appropriately, depending
	; on the bank address being accessed. This macro fixes this.
	;
	; So, instead of using the bank instruction to switch between banks, use _bank instead.
	; 
	;*********************************************************************************
_bank	macro	1
	bank	\1

	IFDEF SX48_52
	  IFDEF SX48_52_ES
	    IF \1 & %00010000		;SX48BD/ES and SX52BD/ES (engineering sample) bank instruction
		setb	fsr.4		;modifies FSR bits 5,6 and 7. FSR.4 needs to be set by software.
	    ENDIF
	  ELSE
	    IF \1 & %10000000		;SX48BD and SX52BD (production release) bank instruction 
		setb	fsr.7		;modifies FSR bits 4,5 and 6. FSR.7 needs to be set by software.
	    ELSE
		clrb	fsr.7
	    ENDIF
	  ENDIF
	ENDIF
	endm

	;*********************************************************************************
	; Macro: _mode
	; Sets the MODE register appropriately for all revisions of SX.
	;
	; This is required since the MODE (or MOV M,#) instruction has only a 4-bit operand. 
	; The SX18/20/28AC use only 4 bits of the MODE register, however the SX48/52BD have 
	; the added ability of reading or writing some of the MODE registers, and therefore use
	; 5-bits of the MODE register. The  MOV M,W instruction modifies all 8-bits of the 
	; MODE register, so this instruction must be used on the SX48/52BD to make sure the MODE
	; register is written with the correct value. This macro fixes this.
	;
	; So, instead of using the MODE or MOV M,# instructions to load the M register, use
	;  _mode instead.
	; 
	;*********************************************************************************
_mode	macro	1
	IFDEF SX48_52
		mov	w,#\1		;loads the M register correctly for the SX48BD and SX52BD
		mov	m,w
	ELSE
		mov	m,#\1		;loads the M register correctly for the SX18AC, SX20AC
					;and SX28AC
	ENDIF
	endm

_clear	macro
	;*********************************************************************************
	; Clear all Data RAM locations
	;*********************************************************************************
IFDEF SX48_52   				;SX48/52 RAM clear routine
		mov	w,#$0a			;reset all ram starting at $0A
		mov	fsr,w
:zero_ram	clr	ind			;clear using indirect addressing
		incsz	fsr			;repeat until done
		jmp	:zero_ram

		_bank	bank0			;clear bank 0 registers
		clr	$10
		clr	$11
		clr	$12
		clr	$13
		clr	$14
		clr	$15
		clr	$16
		clr	$17
		clr	$18
		clr	$19
		clr	$1a
		clr	$1b
		clr	$1c
		clr	$1d
		clr	$1e
		clr	$1f

ELSE     					;SX18/20/28 RAM clear routine
		clr	fsr			;reset all ram banks
:zero_ram	sb	fsr.4			;are we on low half of bank?
		setb	fsr.3			;If so, don't touch regs 0-7
		clr	ind			;clear using indirect addressing
		incsz	fsr			;repeat until done
		jmp	:zero_ram
ENDIF
endm

;*****************************************************************************************
; Data Memory address definitions
; These definitions ensure the proper address is used for banks 0 - 7 for 2K SX devices
; (SX18/20/28) and 4K SX devices (SX48/52). 
;*****************************************************************************************

IFDEF SX48_52
	global_org	=	$0A
	bank0 	=	$00	;bank 0 address on SX52
	bank1 	=	$10	;bank 1 address on SX52
	bank2 	=	$20	;bank 2 address on SX52
	bank3 	=	$30	;bank 3 address on SX52
	bank4 	=	$40	;bank 4 address on SX52
	bank5 	=	$50	;bank 5 address on SX52
	bank6 	=	$60	;bank 6 address on SX52
	bank7 	=	$70	;bank 7 address on SX52
	bank8 	=	$80	;bank 8 address on SX52
	bank9 	=	$90	;bank 9 address on SX52
	bankA 	=	$A0	;bank A address on SX52
	bankB 	=	$B0	;bank B address on SX52
	bankC 	=	$C0	;bank C address on SX52
	bankD 	=	$D0	;bank D address on SX52
	bankE 	=	$E0	;bank E address on SX52
	bankF 	=	$F0	;bank F address on SX52
ELSE
	global_org	=	$08
	bank0	=	$10	;bank 0 address on SX28
	bank1	=	$30	;bank 1 address on SX28
	bank2	=	$50	;bank 2 address on SX28
	bank3	=	$70	;bank 3 address on SX28
	bank4	=	$90	;bank 4 address on SX28
	bank5	=	$B0	;bank 5 address on SX28
	bank6	=	$D0	;bank 6 address on SX28
	bank7	=	$F0	;bank 7 address on SX28
ENDIF

IFDEF SX48_52
	;*********************************************************************************
	; SX48BD/52BD Mode addresses
	; *On SX48BD/52BD, most registers addressed via mode are read and write, with the
	; exception of CMP and WKPND which do an exchange with W.
	;*********************************************************************************
; Timer (read) addresses
TCPL_R		equ	$00		;Read Timer Capture register low byte
TCPH_R		equ	$01		;Read Timer Capture register high byte
TR2CML_R	equ	$02		;Read Timer R2 low byte
TR2CMH_R	equ	$03		;Read Timer R2 high byte
TR1CML_R	equ	$04		;Read Timer R1 low byte
TR1CMH_R	equ	$05 		;Read Timer R1 high byte
TCNTB_R		equ	$06		;Read Timer control register B
TCNTA_R		equ	$07		;Read Timer control register A

; Exchange addresses
CMP		equ	$08		;Exchange Comparator enable/status register with W
WKPND		equ	$09		;Exchange MIWU/RB Interrupts pending with W

; Port setup (read) addresses
WKED_R		equ	$0A		;Read MIWU/RB Interrupt edge setup, 0 = falling, 1 = rising
WKEN_R		equ	$0B		;Read MIWU/RB Interrupt edge setup, 0 = enabled, 1 = disabled
ST_R		equ	$0C		;Read Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
LVL_R		equ	$0D		;Read Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
PLP_R		equ	$0E		;Read Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
DDIR_R		equ	$0F		;Read Port Direction

; Timer (write) addresses
CLR_TMR		equ	$10		;Resets 16-bit Timer
TR2CML_W	equ	$12		;Write Timer R2 low byte
TR2CMH_W	equ	$13		;Write Timer R2 high byte
TR1CML_W	equ	$14		;Write Timer R1 low byte
TR1CMH_W	equ	$15 		;Write Timer R1 high byte
TCNTB_W		equ	$16		;Write Timer control register B
TCNTA_W		equ	$17		;Write Timer control register A

; Port setup (write) addresses
WKED_W		equ	$1A		;Write MIWU/RB Interrupt edge setup, 0 = falling, 1 = rising
WKEN_W		equ	$1B		;Write MIWU/RB Interrupt edge setup, 0 = enabled, 1 = disabled
ST_W		equ	$1C		;Write Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
LVL_W		equ	$1D		;Write Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
PLP_W		equ	$1E		;Write Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
DDIR_W		equ	$1F		;Write Port Direction

ELSE

	;*********************************************************************************
	; SX18AC/20AC/28AC Mode addresses
	; *On SX18/20/28, all registers addressed via mode are write only, with the exception of
	; CMP and WKPND which do an exchange with W.
	;*********************************************************************************
; Exchange addresses
CMP		equ	$08		;Exchange Comparator enable/status register with W
WKPND		equ	$09		;Exchange MIWU/RB Interrupts pending with W

; Port setup (read) addresses
WKED_W		equ	$0A		;Write MIWU/RB Interrupt edge setup, 0 = falling, 1 = rising
WKEN_W		equ	$0B		;Write MIWU/RB Interrupt edge setup, 0 = enabled, 1 = disabled
ST_W		equ	$0C		;Write Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
LVL_W		equ	$0D		;Write Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
PLP_W		equ	$0E		;Write Port Schmitt Trigger setup, 0 = enabled, 1 = disabled
DDIR_W		equ	$0F		;Write Port Direction
ENDIF

	;*********************************************************************************
	; SX18AC/20AC/28AC RTCC bit flags
	;*********************************************************************************
RTCC_ON		=	%10000000	;Enables RTCC at address $01 (RTW hi)
					;*WREG at address $01 (RTW lo) by default
RTCC_ID		=	%01000000	;Disables RTCC edge interrupt (RTE_IE hi)
					;*RTCC edge interrupt (RTE_IE lo) enabled by default
RTCC_INC_EXT	=	%00100000	;Sets RTCC increment on RTCC pin transition (RTS hi)
					;*RTCC increment on internal instruction (RTS lo) is default
RTCC_FE		=	%00010000	;Sets RTCC to increment on falling edge (RTE_ES hi)
					;*RTCC to increment on rising edge (RTE_ES lo) is default
RTCC_PS_ON	=	%00000000	;Assigns prescaler to RTCC (PSA lo)
RTCC_PS_OFF	=	%00001000	;Assigns prescaler to RTCC (PSA lo)
PS_000		=	%00000000	;RTCC = 1:2, WDT = 1:1
PS_001		=	%00000001	;RTCC = 1:4, WDT = 1:2
PS_010		=	%00000010	;RTCC = 1:8, WDT = 1:4
PS_011		=	%00000011	;RTCC = 1:16, WDT = 1:8
PS_100		=	%00000100	;RTCC = 1:32, WDT = 1:16
PS_101		=	%00000101	;RTCC = 1:64, WDT = 1:32
PS_110		=	%00000110	;RTCC = 1:128, WDT = 1:64
PS_111		=	%00000111	;RTCC = 1:256, WDT = 1:128


file: /Techref/scenix/lib/io/osi2/serial/stdinc.src, 10KB, , updated: 2004/11/19 16:16, local time: 2019/10/23 20:28,
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