System Integration Unit (SIU)
MPC5566 Microcontroller Reference Manual, Rev. 2
6-94 Freescale Semiconductor
6.3.1.125 Pad Configuration Register 218 (SIU_PCR218)
The SIU_PCR218 register controls the function, direction, and electrical attributes of AN[15]_FCK.
Figure 6-126. AN[15]_FCK Pad Configuration Register (SIU_PCR218)
Refer to Table 6-19 for bit field definitions. Table 6-122 lists the PA fields for AN[15]_FCK.
6.3.1.126 Pad Configuration Register 219 (SIU_PCR219)
The SIU_PCR219 register controls the drive strength of MCKO.
Figure 6-127. MCKO Pad Configuration Register (SIU_PCR219)
6.3.1.127 Pad Configuration Register 223–220 (SIU_PCR223–SIU_PCR220)
The SIU_PCR223–SIU_PCR220 registers control the drive strength of MDO[3:0].
Figure 6-128. MDO[3:0 ] Pad Configuration Register (SIU_PCR223–SIU_PCR220)
Address: Base + 0x01F4 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
1,
2
1
Input and output buffers are enabled/disabled based on PA selection. Both input and output buffers are disabled for the AN[15]
function. Output buffers only can be enabled for the FCK function.
2
To select the FCK function, set the PA field to 0b10.
0 0 0 0
ODE
0
SRC
0 0
W
RESET: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0
Table 6-122. PCR218 PA Field Definitions
PA Field Pin Function
0b00 Invalid value
0b01 Invalid value
0b10 FCK
0b11 AN[15]
Address: Base + 0x01F6 Access: R/W
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R 0 0 0 0 0 0 0 0
DSC
0 0 0 0 0 0
W
RESET: 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0
Address: Base + (0x01FE–0x01F8) Access: R/W
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R 0 0 0 0 0 0 0 0
DSC
0 0 0 0 0 0
W
RESET: 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0