z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 312

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

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UM005003-0703
Register
ASCI Transmit Data
Register Channel 0:
ASCI Transmit Data
Register Channel 1:
ASCI Receive Data
Register Channel 0:
ASCI Receive Data
Register Channel 1:
CSI/O Control Register:
Z8018x
Family MPU User Manual
Table 57.
TDR0
TDR1
TSR0
TSR1
CNTR
Mnemonics Address
Internal I/O Registers (Continued)
0
0
0
0
0
6
7
8
9
A
during RESET
R/W
bit
SS2 1 0
0 0 0
0 0 1
0 1 0
0 1 1
EF
0
R
End Flag
Phi ¸
Baud Rate
R/W
EIE
0
¸
¸
¸
End Interrupt Enable
160
20
40
80
Remarks
R/W
RE
0
Receive Enable
R/W
TE
0
SS2 1 0
Transmit Enable
1 0 0
1 0 1
1 1 0
1 1 1
—
1
Phi ¸
External
Baud Rate
SS2
R/W
¸
¸
frequency < ¸ 20)
1
1280
320
640
SS1
R/W
1
Speed Select
SS0
R/W
1