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January 2005 © TOSHIBA TEC
e-STUDIO170F Circuit Description
7 - 45
• ASIC (Engine controller: IC15) signal table
Pin No.
Signal name
I/O
Function
1, 2, 20, 41, 51, 59,
60, 70, 80, 93, 101,
121, 122, 139, 149,
158, 161, 170, 179,
180, 191, 200, 210,
221, 229
VSS
-
Signal ground
3
TMS
-
Pull-up: 3.3V
4
TCK
-
Pull-down: signal ground
5
SMC
-
Pull-down: signal ground
6
TD1
-
Pull-up: 3.3V
7
TOD
-
Not used (Open)
8
TRST
-
Pull-down: signal ground
9-11
MON1-3
-
Not used (Open)
12
PLLCLK
I
PLL reference clock
Reference clock for PLL (Phased-Lock Loop) function.
13-15
TMD0-2
-
Pull-down: signal ground
16
TOUT
-
Not used (Open)
17-19, 22
TST0-3
-
Pull-down: signal ground
21, 40, 61, 81, 100,
111, 120, 140, 160,
181, 201, 220, 228,
240
VCC
-
3.3V
23
TEB
-
Pull-up: 3.3V
24, 25, 26, 27
MT1A, AX, B, BX
O
TX motor driver signals A, AX, B, BX
Drives the TX motor for document transport.
28, 29
MISEL1, 2
O
TX motor current control signals 1, 2
Drives the TX motor for document transport.
30
INTPF
I
Power failure interrupt detect signal (Low-active)
Detects the cut off of 3.3V voltage supply due to power
failure.
31
CTBSYX
O
Engine I/F controller status busy signal (Low-active)
The ASIC (Engine controller) indicates to the Engine-
CPU (IC37) that serial information is being transmitted.
32
ETBSYX
I
Engine I/F status busy signal (Low-active)
The Engine-CPU indicates to the ASIC (Engine control-
ler) that status is sent by using the STS signal.
33
CMD
O
Engine I/F command signal
Signal used for the ASIC (Engine controller) to send
serial information in units of 8 bits to the Engine-CPU.
34
STS
I
Engine I/F status signal
Signal used for the Engine-CPU to send serial informa-
tion in units of 8 bit to the ASIC (Engine controller).
35
SRCLKX
O
Engine I/F serial transfer clock
Synchronizing clock for status communication between
the ASIC (Engine controller) and the Engine-CPU.
36
RESETX
I
Reset signal (Low-active)
Resets the system.
37
ROUTX
O
Watchdog reset signal (Low-active)
Detects crashing of the Main-CPU (IC22).
38, 39
USBRQ0X, 1X
I
USB DMA transfer request signals (Low-active)
The USB controller (IC49) requests the ASIC (Engine
controller) to perform DMA transfer.
Summary of Contents for ESTUDIO170F
Page 2: ... 2005 TOSHIBA TEC CORPORATION All rights reserved ...
Page 192: ...e STUDIO170F Function Settings January 2005 TOSHIBA TEC 4 132 ...
Page 214: ...e STUDIO170F Mechanical Description January 2005 TOSHIBA TEC 5 22 ...
Page 308: ...e STUDIO170F Circuit Description January 2005 TOSHIBA TEC 7 78 ...
Page 372: ...e STUDIO170F Removal Replacement Adjustment January 2005 TOSHIBA TEC 8 64 ...
Page 490: ...e STUDIO170F Appendix January 2005 TOSHIBA TEC 12 8 ...
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