UPD75518 NEC, UPD75518 Datasheet - Page 83

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

4.8 SERIAL INTERFACE (CHANNEL 0)
differences between channel 0 and channel 1.
3-wire serial I/O
2-wire serial I/O
Serial bus interface (SBI)
The PD75518(A) has two channels of serial interface: Channel 0 and channel 1. Table 4-9 lists the
Serial transfer mode, function
Clock selection
Transfer method
Transfer end flag
Table 4-9 Differences between Channel 0 and Channel 1
f
Start bit switchable: MSB/LSB
Serial transfer end interrupt request
flag (IRQCSI0)
Available
X
/2
4
, f
X
/2
3
, TOUT F/F, external clock
Channel 0
f
Start bit: MSB
Serial transfer end flag (EOT)
Not available
X
/2
4
, f
X
/2
3
, external clock
Channel 1
PD75518(A)
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