System Integration Unit (SIU)
MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 6-77
Refer to Table 6-19 for bit field definitions. Table 6-97 lists the PA fields for
ETPUB[0:15]_ETPUB[16:31]_GPIO[147:162].
6.3.1.98 Pad Configuration Registers 163 (SIU_PCR163–SIU_PCR166)
The SIU_PCR163–SIU_PCR166 registers control the function, direction, and electrical attributes of
ETPUB[16:19]_PCSA[1:4]_GPIO[163:166]. Both the input and output channels of ETPUB[16:19] are
connected.
Figure 6-99. ETPUB[16:19]_PCSA[1:4]_GPIO[163:166]
Pad Configuration Registers (SIU_PCR163–SIU_PCR166)
Refer to Table 6-19 for bit field definitions. Table 6-98 lists the PA fields for
ETPUB[16:19]_PCSA[1:4]_GPIO[163:166].
Table 6-97. PCR147–PCR162 PA Field Definitions
PA Field Pin Function
0b00 GPIO[147:162]
0b01 ETPUB[0:15]
0b10 ETPUB[16:31]
0b11 ETPUB[0:15]
Address: Base + (0x0186–0x018C) Access: R/W
0123456789101112131415
R 0000
PA OBE
1
1
The OBE bit must be set to one for ETPUB[16:19] or GPIO[163:166] when configured as outputs. When configured as
PCSA[1:4], the OBE bit has no effect.
IBE
2
2
When the pad is configured as an output, set the IBE bit to 1 to show the pin state in the GPDI register. Clear the IBE bit to 0
to reduce power consumption. The IBE bit must be set to one for ETPUB[16:19] or GPIO[163:166] when configured as inputs.
00
ODE HYS SRC WPE WPS
W
RESET: 000000000000001U
3
3
The weak pullup/down selection at reset for the ETPUB[16:19] pin is determined by the WKPCFG pin.
Table 6-98. PCR163–PCR164 PA Field Definitions
PA Field Pin Function
0b00 GPIO[163:166]
0b01 ETPUB[16:19]
0b10 PCSA[1:4]
0b11 ETPUB[16:19]