UPD75518 NEC, UPD75518 Datasheet - Page 89

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

Remarks 3. When clearing CSIE0 during serial transfer, use the following procedure:
Examples 1. f
2. Serial transfer dependent on the contents of CSIM0 is enabled.
1
2
3
transfer is completed, and serial transfer is performed in the SBI mode with the SB0 pin used
as the serial data bus.
SEL
MOV XA, #10001010B
MOV CSIM0, XA
SEL
SET1 CSIE0
X
/2
Disable interrupts by clearing the interrupt enable flag.
Clear CSIE0.
Clear the interrupt request flag.
4
is selected as the serial clock, serial interrupt IRQCSI0, is generated each time serial
MB15
MB15
; or CLR1 MBE
; CSIM0
; or CLR1 MBE
10001010B
PD75518(A)
89