Z8523L08VEG Datasheet, PDF (117/118 Pages) Zilog, Inc. – Enhanced Serial Communications Controller

SDLC loop 18
SDLC status FIFO 19
synchronous 16
monosync 4, 16
N
no vector (NV) 28
NV 28
O
ordering information 107
P
package information 105
part number descriiption 108
pin assignments
Z80230 3
Z85230 3
pin descriptions 1
pin functions
Z80230 2
Z85230 2
pins, common
CTSA 4
CTSB 4
DCDA 4
DCDB 4
DTR/REQA 4
DTR/REQB 4
IEI 5
IEO 5
INT 6
INTACK 6
PCLK 5
RTSA 4
RTSB 4
RTxCA 5
RTxCB 5
RxDA 5, 16
RxDB 5, 16
SYNCA 4
PS005308-0609
Z80230/Z85230/L
110
SYNCB 4
TRxCA 5
TRxCB 5
TxDA 5
TxDB 5
W/REQA 5
W/REQB 5
pins, Z80230 exclusive
A7-A0 6
AS 7
CS0 7
CS1 7
DS 7
R/W 6
pins, Z85230 exclusive
CE 6
Channels A/B 6
D/C 6
D7-D0 6
RD 6
WR 6
polynomial, SDLC CRC 17
R
ratings, absolute maximum 75
read cycle timing
Z80230 71
Z85230 73
read register (RR) 10
read registers 53
receive conditions 14
request on receive 22
request on transmit 22
request on transmit mode 24
reset highest IUS command 28
reset Tx CRC generator command 28
reset Tx/underrun EOM latch 28
RR 10
RR0 latch 27
RTS problem
description 101
solutions 102
PRELIMINARY
Index