Freescale Semiconductor MCF5329 Reference Manual page 238

General Purpose I/O Module
Table 13-1. MCF5327/8/9 Signal Information and Muxing (continued)
Signal Name GPIO
USB_VDD —
VSS —
PLL_VSS —
USB_VSS —
1
Refers to pin's primary function.
2
Pull-up enabled internally on this signal for this mode.
3
The SDRAM functions of these signals are not programmable by the user. They are dynamically switched by the processor
when accessing SDRAM memory space and are included here for completeness.
4
Primary functionality selected by asserting the DRAMSEL signal (SDR mode). Alternate functionality selected by negating
the DRAMSEL signal (DDR mode). The GPIO module is not responsible for assigning these pins.
5
GPIO functionality is determined by the edge port module. The GPIO module is only responsible for assigning the alternate
functions.
6
If JTAG_EN is asserted, these pins default to Alternate 1 (JTAG) functionality. The GPIO module is not responsible for
assigning these pins.
7
Pull-down enabled internally on this signal for this mode.
8
Must be left floating for proper operation of the PLL.
Refer to the Chapter 2, "Signal Descriptions,"
not controlled by the ports module. The function of most of the pins (primary function, GPIO, etc.) is
determined by the ports module pin assignment registers.
It should be noted from Table 13-2
one pin. While it is possible to enable the function on more than one pin simultaneously, this type of
programming should be avoided for input functions to prevent unexpected behavior. All multiple-pin
functions are listed in Table
Function
FB_CS5
FB_CS4
I2C_SDA
I2C_SCL
CANRX
CANTX
13-10
Alternate 1 Alternate 2
— —
— —
— —
— —
for more detailed descriptions of these pins and other pins
that there are several cases where a function is available on more than
13-2.
Table 13-2. Multiple-Pin Functions
Direction
O
O
I/O
I/O
I
O
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MCF5327 MCF5328
196
MAPBGA MAPBGA
— — G10
— — G6–G9,
H6–H8, P9
— — H11
— — H12
Associated Pins
FB_CS5
, A23
FB_CS5
, A22
I2C_SDA, QSPI_DOUT, FEC_MDIO
I2C_SCL, QSPI_CLK, FEC_MDC
LCD_D16, I2C_SDA, SSI_RXD
LCD_D17, I2C_SCL, SSI_TXD
MCF53281
MCF5329
256
256
MAPBGA
L14 L14
G7–G10, G7–G10,
H7–H10, H7–H10,
J7–10, J7–10,
K7–K10, K7–K10,
L12, L13 L12, L13
K13 K13
M14 M14
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