
May 1997
35
DATA BOOK v1.5
PIN INFORMATION
CL-PS7110
Low-Power System-on-a-Chip
2.4
Pin Descriptions
Table 2-2.
Numeric Pin Listing
a
Pin
No.
Signal
Buffer
b
Reset
and Pin
Test
Rest
State
1
CS[5]
I/O - strength 1
Low
2
CS[6]
I/O - strength 1
Low
3
CS[7]
I/O - strength 1
Low
4
VDD
Pad power
–
5
VSS
Pad power
–
6
EXPCLK
I/O - strength 1
Low
7
WORD
I/O - strength 1
Low
8
WRITE
I/O - strength 1
Low
9
RUN
I/O - strength 1
Low
10
EXPRDY
I/O - strength 1
Input
11
PC[7]
I/O - strength 1
Low
12
PC[6]
I/O - strength 1
Low
13
PC[5]
I/O - strength 1
Low
14
PC[4]
I/O - strength 1
Low
15
PC[3]
I/O - strength 1
Low
16
PC[2]
I/O - strength 1
Low
17
PC[1]
I/O - strength 1
Low
18
PC[0]/OSCEN
I/O - strength 1
Low
19
VDD
Pad power
–
20
VSS
Pad power
–
21
VSS
Core power
–
22
PB[7]
I/O - strength 1
Input
23
PB[6]
I/O - strength 1
Input
24
PB[5]
I/O - strength 1
Input
25
PB[4]
I/O - strength 1
Input
26
PB[3]
I/O - strength 1
Input
27
PB[2]
I/O - strength 1
Input
28
PB[1]
I/O - strength 1
Input
29
PB[0]
I/O - strength 1
Input
30
PE[3]
I/O - strength 1
Input
31
PE[2]/NFIQ
I/O - strength 1
Input
32
VDD
Pad power
–
33
VSS
Pad power
–
34
PA[7]
I/O - strength 1
Input
35
PA[6]
I/O - strength 1
Input
36
PA[5]
I/O - strength 1
Input
37
PA[4]
I/O - strength 1
Input
38
PA[3]
I/O - strength 1
Input
39
PA[2]
I/O - strength 1
Input
40
PA[1]
I/O - strength 1
Input
41
PA[0]
I/O - strength 1
Input
42
LEDDRV
I/O - strength 1
Low
43
TXD
I/O - strength 1
High
44
PHDIN
I/O - strength 1
Input
45
CTS
I/O - strength 1
Input
46
RXD
I/O - strength 1
Input
47
DCD
I/O - strength 1
Input
48
DSR
I/O - strength 1
Input
49
VSS
32K Oscillator
power
–
50
RTCOUT
32K Oscillator
X
51
RTCIN
32K Oscillator
X
52
VDD
32K Oscillator
power
–
53
NTEST[1]
–
Input
54
NTEST[0]
–
Input
Table 2-2.
Numeric Pin Listing
a
(cont.)
Pin
No.
Signal
Buffer
b
Reset
and Pin
Test
Rest
State