z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 168

• Manufacturer Part Number: z80189
• Description: Z80180, Z8s180, Z8l180 Mpu Operation
• Manufacturer: ZiLOG Semiconductor

CKS
TXS
CSI/O and RESET
During RESET each bit in the CNTR is initialized as defined in the
CNTR register description. CSI/O transmit and receive operations in
progress are aborted during RESET. However, the contents of TRDR are
not changed.
Figure 59.
TE
EF
Transmit Timing Diagram–Internal Clock
LSB
Family MPU User Manual
Read or write of CSI/O
Transmit/Receive
Data Register
UM005003-0703
MSB
Z8018x
153