Samsung sf150t Service Manual page 36

5-2-11 I/O Port Table
Pin No. Port Name Circuit Symbol
P0.0
34
P0.1
35
P2.4
45
P2.5
46
P3.0 MOTOR A
49
P3.1 MOTOR /A
50
P3.2 MOTOR B
51
P3.3 MOTOR /B
52
P3.4
53
P3.5
54
P3.6
55
P4.1
93
P4.2
92
P4.4 /LOWBAT
90
P4.5
89
P4.6
87
P4.7
88
P5.0
126
P5.3
96
P5.5
137
P5.6
138
P5.7
139
P6.1 /HOOK DET2
59
P6.2
60
P6.3 P_EMPTY
61
P6.4
62
P6.5 RING_DET
63
P6.6 /DSPFLAG
116
SF150T
I/O
A16 O
/DSP_CS PCS
IRXD I
ITXD O
O
O
O
O
/CML2 O
/CML1 O
/24VCTL O
DSPRST O
DSPHL O
I
DSPACK O
/GLED O
- O
LEDCTL O
/NOBAT I
SCLK O
SDATS O
/SDEN I
I
MODE I
I
D_DET I
I
I
High
High Bank Memory
DSP Inactive
DATA = 1
DATA = 1
Active
Active
Active
Active
-
Active
Active
DSP Reset
DSP High Byte
Normal
Normal
CIS LED On
High
OPE LED On
Normal
CODEC Serial Clock
CODEC Serial Data
Normal
-
Open
No Paper
No Document
Normal
Normal
Circuit Description
Low
Low Bank Memory
DSP Active
DATA = 0
DATA = 0
Inactive
Inactive
Inactive
Inactive
-
Inactive
Inactive
Normal
DSP Low Byte
Low Battery
DSP Response Mode
Off
Low
OPE LED Off
No Barttery
CODEC Enable
-
Closed
Paper Exist
Document Exist
Incomming Ring
Active DSP Data Transfer
5-5