Register Descriptions
6.3.19.1 Reserved—Bits 15–5
This bit field is reserved. Each bit must be set to 0.
6.3.19.2 Configure GPIOB9 (GPS_B9)—Bit 4
This field selects the alternate function for GPIOB9.
•
•
0 = SDA - I2C Serial Data (default)
1 = CANRX - MSCAN Receive Data
6.3.19.3 Reserved—Bit 3
This bit field is reserved. It must be set to 0.
6.3.19.4 Configure GPIOB8 (GPS_B8)—Bit 2
This field selects the alternate function for GPIOB8.
•
•
0 = SCL - I2C Serial Clock (default)
1 = CANTX - MSCAN Transmit Data
6.3.19.5 Reserved—Bit 1
This bit field is reserved. It must be set to 0.
6.3.19.6 Configure GPIOB7 (GPS_B7)—Bit 0
This field selects the alternate function for GPIOB7.
•
•
0 = TXD0 - QSCI0 Transmit Data (default)
1 = SCL - I2C Serial Clock
6.3.20 SIM GPIO Peripheral Select Register for GPIOC and GPIOD
(SIM_GPSCD)
See Section 6.3.16 for general information about GPIO Peripheral Select Registers.
Base + $17
Read
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GPS_
D5
Write
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RESET
Figure 6-23 GPIO Peripheral Select Register for GPIOC and GPIOD (SIM_GPSCD)
6.3.20.1 Reserved—Bits 15–13
This bit field is reserved. Each bit must be set to 0.
56F8036 Data Sheet, Rev. 6
Freescale Semiconductor
101