AN114 Xicor, AN114 Datasheet - Page 12

• Manufacturer Part Number: AN114
• Description: Interfacing the X9408/X9418 XDCP to 8051 Microcontrollers
• Manufacturer: Xicor

read_from_dr:
mov_dr_2_wcr:
mov_wcr_2_dr:
global_dr_2_wcr:
global_wcr_2_dr:
decr_wiper:
incr_wiper:
REV 1.1 11/12/02
mov
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END
ADDR_BYTE, #SLAVE_ADR12; Load Slave address byte
ID, #DCP2_R1; Specify DR#1 for DCP#2
COMMAND, #READDR; Read DR
execute
ADDR_BYTE, #SLAVE_ADR12; Load Slave address byte
ID, #DCP2_R1; Specify DR#1 to WCR of DCP#2
COMMAND, #XFRDR; Transfer DR to WCR
execute
ADDR_BYTE, #SLAVE_ADR12; Load Slave address byte
ID, #DCP2_R1; Specify WCR to DR#1 of DCP#2
COMMAND, #XFRWCR; Transfer WCRto DR
execute
ADDR_BYTE, #SLAVE_ADR12; Load Slave address byte
ID, #DR_1
COMMAND, #GXFRDR; Transfer DR to WCR
execute
ADDR_BYTE, #SLAVE_ADR12; Load Slave address byte
ID, #DR_1
COMMAND, #GXFRWCR; Transfer WCRto DR
execute
ADDR_BYTE, #SLAVE_ADR12; Load Slave address byte
ID, #WCR_2
PULSES, #0Fh; Decrement DCP#2 for 16 pulses
COMMAND, #INCDECWIPER; INC wiper
execute
ADDR_BYTE, #SLAVE_ADR12; Load Slave address byte
ID, #WCR_2
PULSES, #8Fh; Increment DCP#2 for 16 pulses
COMMAND, #INCDECWIPER; DEC wiper
execute
; DR value is in DATA_BYTE
; Specify DR#1 to WCR
; Specify WCR to DR#1 of DCP#2
; Select DCP#2
; Select DCP#2
Application Note
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AN 114
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