Signal name – IBASE MB945 User Manual
Page 21
INSTALLATIONS
DDRIII1, DDRIII 3: Channel A DDR3 Socket
DDRIII1 and DDRIII 3 are the first-channel DDR3 sockets.
DDRIII2, DDRIII 4: Channel B DDR3 Socket
DDRIII2 and DDRIII 4 are the second-channel DDR3 sockets.
CN1: VGA CRT Connector
CN1 is a DB-15 VGA connector located beside the COM1 port. The
following table shows the pin-out assignments of this connector.
Signal Name
Pin #
Pin #
Signal Name
Red 1
2
Green
Blue 3
4 N.C.
GND 5
6 GND
GND 7
8 GND
VCC 9
10
GND
N.C. 11
12
DDCDATA
HSYNC 13 14 VSYNC
DDCCLK 15
CN2: Parallel Port Connector
CN2 is a DB-25 external connector situated on top of the VGA and serial
ports.
CN2 Parallel Port
Signal Name
Pin #
Pin #
Signal Name
Line printer strobe
1
14
AutoFeed
PD0, parallel data 0
2
15
Error
PD1, parallel data 1
3
16
Initialize
PD2, parallel data 2
4
17
Select
PD3, parallel data 3
5
18
Ground
PD4, parallel data 4
6
19
Ground
PD5, parallel data 5
7
20
Ground
PD6, parallel data 6
8
21
Ground
PD7, parallel data 7
9
22
Ground
ACK, acknowledge
10
23
Ground
Busy 11
24
Ground
Paper empty
12
25
Ground
Select 13
N/A
N/A
MB945 User’s Manual
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