z85230 ZiLOG Semiconductor, z85230 Datasheet - Page 7

• Manufacturer Part Number: z85230
• Description: Enhanced Serial Communications Controller
• Manufacturer: ZiLOG Semiconductor

PS005303-0907
Bus Timing
and Reset
Data Bus
Bus Timing
Interrupt
and Reset
Control
Data Bus
Interrupt
Control
Figure 1. Z85230 Pin Functions
Figure 2. Z80230 Pin Functions
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
AS
DS
R/W
CS1
CS0
INT
INTACK
IEI
IEO
D7
D6
D5
D4
D3
D2
D1
D0
RD
WR
A/B
CE
D/C
INT
INTACK
IEI
IEO
+5V GND PCLK
+5V GND PCLK
Z80230
Z85230
DTR/REQA
DTR/REQB
DTR/REQA
DTR/REQB
W/REQA
W/REQB
SYNCA
SYNCB
TRxCA
RTxCA
TRxCB
RTxCB
W/REQA
W/REQB
DCDA
DCDB
RTSA
CTSA
RTSB
CTSB
RxDA
RxDB
TxDA
TxDB
SYNCA
SYNCB
TRxCA
RTxCA
TRxCB
RTxCB
DCDA
DCDB
RTSA
CTSA
RTSB
CTSB
RxDA
RxDB
TxDA
TxDB
Channel
Clocks
Serial
Data
Channel
Controls
for modem,
DMA and
Other
Serial
Data
Channel
Clocks
Channel
Controls
for modem,
DMA and
Other
Channel
Clocks
Serial
Data
Channel
Controls
for modem,
DMA and
Other
Serial
Data
Channel
Clocks
Channel
Controls
for modem,
DMA and
Other
Product Specification
Channel A
Channel B
Z85230/Z80230
Channel A
Channel B
Pin Descriptions
2