Table of Contents
Advertisement
PIN
SIGNAL
NO.
MNEMONIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
DO
D2
D4
D6
END-
AO
A1
WR-
RDY-
GND
BINT-
NMI
IFC
POLL-
SYNCj1YAD-
DoUT
BPO
UAD
ADO
AD2
CEND
DBO-
DB1-
DB3-
DBS-
DB7-
DB9-
DB10-
DB11-
DB13-
DB15-
BR
Table 3- 8. BIC Chip Pin Connections
BIC
MNEMONIC
DO
D2
D4
D6
END-
AO
A2
DSO-
RDY-
AS-
DTACK-
INT-
NMI
IFC
POLL-
SYNC_MY AD-
DOUT
BPO
UAD
ADO
AD2
CEND
BIODO-
BIOD1-
BIOD3-
BIODS-
BIOD7-
BIOOO-
BIOD10-
BIOD11-
BIOD13-
BIOD1S-
BR
DESCRIPTION
Data Bus, Bit 0
Data Bus, Bit
2
Data Bus, Bit 4
Data Bus, Bit
6
Indicates end of data read or
write
Register Address, Bit 0
Register Address, Bit
2
Z-80B Write
Asserted by BIC when ready for
data transfer
Not used
Not used
BIC Interrupt
Non-Maskable Interrupt
Interface Clear
Poll
In conjunction with DE, determines
data bus drivers mode of operation
Data Out, specifies data bus
direction
Bus Primitive, Bit O.
With BP1,
specifies bus primitive operation
Unary Address, latches BIC channel
address after a PPoN or IFC
Address Bus, Bit 0
Address Bus, Bit
2
Channel End
Backplane I/O Data, Bit 0
Backplane I/O Data, Bit 1
Backplane I/O Data, Bit 3
Backplane I/O Data, Bit 5
Backplane I/O Data, Bit 7
Backplane I/O Data, Bit 9
Backplane I/O Data, Bit 10
Backplane I/O Data, Bit 11
Backplane I/O Data, Bit· 13
Backplane I/O Data, Bit 15
Burst Reguest, indicates at least
one more transfer after current
one
3-23
HP 27130B
Advertisement
Table of Contents
