Toshiba DP120F Service Manual page 380

• I/OP-2 GA Signal Table
No. Signal Name
1, 25, 41, 52, +5V
61
2-9 D0-7
10, 34, 42, SG
46, 51, 56,
60, 71
11 IOCS5X
12 IOWRX
13 IORDX
14-16 A1-3
17 MMSYNC
18 PCDET
19 CIREQ
20 HSWC3
21 PWRSVREQ
22 LSYNC
23 DONE
24 G/PCHK
26 HSWSO
I: Input O: Output
March 2000 © TOSHIBA TEC
(1/4)
Type
- +5V
I/O Data bus
- Signal ground
I I/OP-2 GA chip select signal (active-low)
I/OP-2 GA (IC48) select signal.
I I/O write signal (active-low)
Writes data to each IC and I/O.
I I/O read signal (active-low)
Reads data into each IC and I/O.
I Address bus
I Main motor drive synchronizing signal
(H: Synchronized)
Indicates that the rotation of the main motor is syn-
chronized with the drive signal.
I PC I/F PBA connection detect signal (L: Installed)
Detects the connection status of the PC I/F PBA.
I CI request signal (L: CI detected)
Indicates that the Sub-CPU (IC37) has detected CI.
- Signal ground
I Power save request signal
Requests the Sub-CPU to transit to the power save
mode.
I CODEC output synchronizing signal
(H: Start of output data set)
The data output synchronizing signal is input from
CODEC (IC51).
I CODEC process end signal (H: End)
Indicates that CODEC has ended the process.
I GDI/PCL status check signal (H: GDI, L: PCL)
Identifies the data transfer system from the PC.
- Unused
I/O: Bidirectional
Functions
7-71 DP120F/DP125F Circuit Description