Dc Interface Characteristics; Connector Configuration; Dc Characteristics; Connector Pi Pin Assignments - Intel iSBX 350 PARALLEL MULTIMODULE BOARD Hardware Reference Manual

iSBX 350
2-8. DC INTERFACE CHARACTERISTICS
The dc characteristics of the M ultimodule board at
the Jl connector are listed in table 2-1.
2-9. CONNECTOR CONFIGURATION
The Multimodule board is designed to mount onto a
Multimodule connector on a host iSBC microcom-
puter. Connector PI interfaces all data and control
Preparation for Use
signals between the host iSBC microcomputer and
the Multimodule board. The signals found on each
pin of the PI connector are listed in table 2-2.
Reference chapter 4 for signal descriptions.
Connector JI on the Multimodule board handles
parallel I/O communication between the Multi-
module board and an external device. The signals
,found on each pin of the JI connector are listed in
table 2-3.
Table 2-1. DC Characteristics
Output
Type IOL MAX VOL MAX
IOH MAX VOH MIN Co MIN
Signal
Drive (mA)
(loL=MAX) (J,LA) (loH=MAX) (pt)
Port A TTL 20 0.45 -10mA 2.4 18
Input
Type IlL MAX VIL MAX IIHMAX
VIH MIN
CIMAX
Signal
Receiver (mA)
(mA) (pt)
(V IL =.45 (VI~2.4)
Port A
TTL
-5.2
0.80
-2.2
2.0 18
Port B & C:
1K Pull-Up
TTL
-5.0
0.80
-2.2
2.0 20
Port B & C:
I
I
220/330 Terminator
I
TTL
I
-21.00 I
0.80
I -3.0
2.0 20
EXT INTR (J1 Pin 50)
i TTL
i
-6.5
i
0.50
i
-2.2 i
2.4 40
NOTES:
TTL = Standard Totem Pole Output
Reference table 2-6 for Port Band C output characteristics.
Capacity values are approximations.
I
Table 2-2. Connector PI Pin Assignments
Pin Mnemonic Description Pin Mnemonic Description
35 GND
SIGNAL GROUND
36 +5V +5 Volts
33 MOO MDATA BIT 0
34 ' -
RESERVED
31 MD1
MDATA BIT 1
32
-
RESERVED
29 MD2 MDATA BIT 2 30
OPTO OPTION 0
27 MD3
MDATA BIT 3
28 OPT1 OPTION 1
25 MD4
MDATA BIT 4
26
-
RESERVED
23 MD5 MDATA BIT 5
I
24 - RESERVED
21 MD6 MDATA BIT 6 22 MCSOI M CHIP SELECT 0
19 MD7
MDATA BIT 7
20
-
RESERVED
17 GND SIGNAL GROUND 18
+5V
+5 Volts
15
lORDI
10 READ COMMAND
16
-
RESERVED
13 10WRT/ 10 WRITE COMMAND 14 MINTRO M INTERRUPT 0
11 MAO M ADDRESS 0 12 MINTR1 M INTERRUPT 1
9 MA1 M ADDRESS 1 10
-
RESERVED
7 - RESERVED 8
MPSTI M PRESENT
5 RESET RESET 6
-
RESERVED
SI
L
0 N 4 I
+5 Volts
T
3
GND I GNA GR U 0 5V
I
RESERVED
2 RESERVED
2·3