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HP 27130B
Table 3 - 8. BIC Chip Pin Connections (Continued)
PIN
SIGNAL
BIC
NO.
'MNEMONIC
MNEMONIC
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
DBYT
IoSB
D1
D3
D5
D7
GND
A1
SEL-
RD-
DTR-
RESET-
ARQ
+5
SYNC
MYAD
BP1
AD1
AD3
CBYT
GND
DB2-
DB4-
DB7-
DB8-
DB12-
DB14-
DEND
DE
PPoN-
DBYT
10SB
D1
D3
D5
D7
GND
A1
CHSEL-
DS1-
DTR-
RST-
ARQ
VCC
SYNC
MYAD
BP1
AD1
AD3
CBYT
GND
BIoD2-
BIoD4-
BIoD7-
BIOD8-
BIoD12-
BIoD14-
DEND
DE
PPoN-
DESCRIPTION
Device Byte, indicates that'the current 16-bit
transfer ends with an odd byte
I/O Strobe
Data Bus, Bit 1
Data Bus, Bit 3
Data Bus, Bit
5
Data Bus, Bit 7
Ground
Register Address, Bit 1
BIC Select, enables the BIC to
to read or write
Z-80B Read
Data Transfer Reguest
Reset
Attention Reguest
+5 V
Synchronize, Signals that an
addressed bus operation is to
occur
My Address
Bus Primitive, Bit 1.
With EPO,
specifies bus primitive operation
Address Bus, Bit 1
Address Bus, Bit 3
Channel Byte, indicates that the current 16-bit
transfer ends with an odd byte
Ground
Backplane I/O Data, Bit 2
Backplane I/O Data, Bit 4
Backplane I/O Data, Bit 7
Backplane I/O Data, Bit 8
Backplane I/O Data, Bit 12
Backplane I/O Data, Bit 14
Not used
Device End, indicates end of
transfer
Direction Enable
Primary Power On
3-24
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