NXP Semiconductors MPC5566, Reference Manual

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System Integration Unit (SIU)
MPC5566 Microcontroller Reference Manual, Rev. 2
6-74 Freescale Semiconductor
6.3.1.93 Pad Configuration Registers 138–141 (SIU_PCR138–SIU_PCR141)
The SIU_PCR138–SIU_PCR141 registers control the function, direction, and electrical attributes of
ETPUA[24:27]_IRQ[12:15]_GPIO[138:141]. Only the output channels of ETPUA[24:27] are connected.
Figure 6-94. ETPUA[24:27]_IRQ[12:15]_GPIO[138:141]
Pad Configuration Registers (SIU_PCR138–SIU_PCR141)
Refer to Table 6-19 for bit field definitions. Table 6-93 lists the PA fields for
ETPUA[24:27]_IRQ[12:15]_GPIO[138:141].
6.3.1.94 Pad Configuration Registers 142–144 (SIU_PCR142–SIU_PCR144)
The SIU_PCR142–SIU_PCR144 registers control the function, direction, and electrical attributes of
ETPUA[28:30]_PCSC[1:3]_GPIO[142:144]. Only the output channels of ETPUA[28:30] are connected.
Figure 6-95. ETPUA[28:30]_PCSC[1:3]_GPIO[142:144]
Pad Configuration Register (SIU_PCR142–SIU_PCR144)
Address: Base + (0x0154–0x015A) Access: R/W
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R 0 0 0 0
PA OBE
1
1
When configured as ETPUA[24:27] or IRQ[12:15], the OBE bit has no effect. The OBE bit must be set to 1 for GPIO[138:141]
when configured as output.
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 1 for GPIO[138:141] when configured as input.
0 0
ODE HYS SRC WPE WPS
W
RESET: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 U
3
3
The weak pullup/down value at reset for ETPUA[24:27] is determined by WKPCFG.
Table 6-93. PCR138–PCR141 PA Field Definitions
PA Field Pin Function
0b00 GPIO[138:141]
0b01 ETPUA[24:27]
0b10 IRQ[12:15]
0b11 ETPUA[24:27]
Address: Base + (0x015C–0x0160) Access: R/W
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R 0 0 0 0
PA OBE
1
1
When configured as ETPUA[28:30] or PCSC[1:3], the OBE bit has no effect. When GPIO[142:144] is configured as output, set
the OBE bit to 1.
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[142:144] registers. Clear the
IBE bit to 0 to reduce power consumption. The IBE bit must be set to 1 for GPIO when configured as input.
0 0
ODE HYS SRC WPE WPS
W
RESET: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 U
3
3
The weak pullup/down value at reset for ETPUA[28:30] is determined by WKPCFG.