W7500x Reference Manual Version1.1.0
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17.4
Registers (Base address : 0x4100_3000)
PAD Control register (Px_y PCR)(x=A..D, y=0..15)
Address offset : 0x000
Reset value : 0x0000_0060
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
res
res
res
res
res
res
res
res
res
res
res
res
res
res
res
res
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
res
res
res
res
res
res
Res
res
res
CS
IE
res
OD
DS
PUPD
R/W R/W
R/W R/W
R/W
[1:0] PUPD – Pull-up, Pull-down selection register
These bits are written by S/W.
00 : Neither
01 : pull-down
10 : pull-up
11 : Neither
[2] DS – Driving strength selection register
0 : High driving strength
1 : Low driving strength
[3] OD – Open Drain output mode register
0 : Open Drain output mode disable
1 : Open Drain output mode enable
[5] IE : Input buffer enable selection register
0 : Input buffer disable
1 : Input buffer enable
[6] CS – CMOS input or Summit trigger input selection register
0 : Summit trigger input buffer
1 : CMOS input buffer
17.5
Register map
The following Table 12 summarizes the PAD controller registers.
Table 12 PAD controller register map and reset values