Chapter 2 Port Integration Module (S12ZVHYPIMV1)
S12ZVHY/S12ZVHL Family Reference Manual Rev. 1.05
Freescale Semiconductor
103
2.3.2.15
Pull Device Enable Register
Address 0x0226 PERA
0x0227 PERB
0x0246 PERC
0x0247 PERD
0x0266 PERE
0x0267 PERF
0x0287 PERADL
0x02C3 PERT
0x02D3 PERS
0x02F3 PERP
0x0303 PERH
0x0313 PERJ
0x0323 PERG
0x0353 PERU
Access: User read/write
(1)
1. Read: Anytime
Write: Anytime
7
6
5
4
3
2
1
0
R
PERx7
PERx6
PERx5
PERx4
PERx3
PERx2
PERx1
PERx0
W
Reset
Ports B, E:
0
0
0
0
1
1
1
1
Ports C, P T,
ADL, J, U:
0
0
0
0
0
0
0
0
Others:
1
1
1
1
1
1
1
1
Figure 2-17. Pull Device Enable Register
Table 2-15. Pull Device Register Field Descriptions
Field
Description
7-0
PERx
Pull Enable
— Activate pull device on input pin
This bit controls whether a pull device on the associated port input or open-drain output pin is active. If a pin is used
as push-pull output this bit has no effect. The polarity is selected by the related polarity select register bit. On open-
drain output pins only a pullup device can be enabled.
1 Pull device enabled
0 Pull device disabled