Motorola DragonBall MC9328MX1 Reference Manual page 860

Synchronous Serial Interface (SSI)
Pin
SSI_TXCLK Primary function of
GPIO Port C [8]
Alternate function
of GPIO Port B [19]
SSI_TXFS Primary function of
GPIO Port C [7]
Alternate function
of GPIO Port B [18]
SSI_TXDAT Primary function of
GPIO Port C [6]
Alternate function
of GPIO Port B [17]
SSI_RXDAT Primary function of
GPIO Port C [5]
Alternate function
of GPIO Port B [16]
SSI_RXCLK Primary function of
GPIO Port C [4]
Alternate function
of GPIO Port B [15]
30-6
Table 30-1. Pin Configuration
1
Setting
1. Clear bit 8 of Port C GPIO In Use Register (GIUS_C)
2. Clear bit 8 of Port C General Purpose Register (GPR_C)
3. Clear bit 3 in the Function Muxing Control Register (FMCR) in
the System Control Module
1. Clear bit 19 of Port B GPIO In Use Register (GIUS_B)
2. Set bit 19 of Port B General Purpose Register (GPR_B)
3. Set bit 3 in the Function Muxing Control Register (FMCR) in
the System Control Module
1. Clear bit 7 of Port C GPIO In Use Register (GIUS_C)
2. Clear bit 7 of Port C General Purpose Register (GPR_C)
3. Clear bit 4 in the Function Muxing Control Register (FMCR) in
the System Control Module
1. Clear bit 18 of Port B GPIO In Use Register (GIUS_B)
2. Set bit 18 of Port B General Purpose Register (GPR_B)
3. Set bit 4 in the Function Muxing Control Register (FMCR) in
the System Control Module
1. Clear bit 6 of Port C GPIO In Use Register (GIUS_C)
2. Clear bit 6 of Port C General Purpose Register (GPR_C)
(This is an output-only pin and therefore does not require a
control signal in the Function Muxing Control Register (FMCR))
1. Clear bit 17 of Port B GPIO In Use Register (GIUS_B)
2. Set bit 17 of Port B General Purpose Register (GPR_B)
(This is an output-only pin and therefore does not require a
control signal in the Function Muxing Control Register (FMCR))
1. Clear bit 5 of Port C GPIO In Use Register (GIUS_C)
2. Clear bit 5 of Port C General Purpose Register (GPR_C)
3. Clear bit 5 in the Function Muxing Control Register (FMCR) in
the System Control Module
1. Clear bit 16 of Port B GPIO In Use Register (GIUS_B)
2. Set bit 16 of Port B General Purpose Register (GPR_B)
3. Set bit 5 in the Function Muxing Control Register (FMCR) in
the System Control Module
1. Clear bit 4 of Port C GPIO In Use Register (GIUS_C)
2. Clear bit 4 of Port C General Purpose Register (GPR_C)
3. Clear bit 6 in the Function Muxing Control Register (FMCR) in
the System Control Module
1. Clear bit 15 of Port B GPIO In Use Register (GIUS_B)
2. Set bit 15 of Port B General Purpose Register (GPR_B)
3. Set bit 6 in the Function Muxing Control Register (FMCR) in
the System Control Module
MC9328MX1 Reference Manual
Configuration Procedure
MOTOROLA