MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 405

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

18.7.2 SPI Control Register 2
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
A
B
C
D
1. Slave output is enabled if SPIDDR bit 0 = 1, SS = 0, and MSTR = 0 (A, C).
2. Master output is enabled if SPIDDR bit 1 = 1 and MSTR = 1 (B, D).
3. SCK output is enabled if SPIDDR bit 2 = 1 and MSTR = 1 (B, D).
4. SS output is enabled if SPIDDR bit 3 = 1, SPICR1 bit 1 (SSOE) = 1, and MSTR = 1 (B, D). MODF input is enabled if SPI
5. GP = General-purpose
Normal
Bidirectional
DDR bit 3 = 0 and SSOE = 0. GP input is enabled if SPI DDR bit 3 = 0 and SSOE = 1.
Pin Mode
SPC0 MSTR
0
1
Address: 0x00cb_0001
0
1
0
1
Reset:
Read: Anytime
Write: Anytime; writing to unimplemented bits has no effect
SPISDOZ — SPI Stop in Doze Bit
SPC0 — Serial Pin Control Bit 0
Read:
Write:
Table 18-4. Bidirectional Pin Configurations
The SPIDOZ bit stops the SPI clocks when the CPU is in doze mode.
Reset clears SPISDOZ.
The SPC0 bit enables the bidirectional pin configurations shown in
Table
Freescale Semiconductor, Inc.
Slave data
output
Master data input
Slave data I/O
GP I/O
For More Information On This Product,
1 = SPI inactive in doze mode
0 = SPI active in doze mode
MISO Pin
Serial Peripheral Interface Module (SPI)
Bit 7
0
0
18-4. Reset clears SPC0.
Figure 18-3. SPI Control Register 2 (SPICR2)
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= Writes have no effect and the access terminates without a transfer error exception.
(1)
6
0
0
Slave data input SCK input
Master data
output
GP
Master data I/O SCK output
MOSI Pin
(5)
I/O
5
0
0
(2)
SCK output
SCK input
4
0
0
SCK Pin
Serial Peripheral Interface Module (SPI)
(3)
3
0
0
Slave-select input
MODF/GP input (DDRSP3 = 0)
or GP output (DDRSP3 = 1)
Slave-select input
MODF/GP input (DDRSP3 = 0)
or GP output (DDRSP3 = 1)
Memory Map and Registers
2
0
1
SS Pin
Advance Information
SPISDOZ
1
0
(4)
SPC0
Bit 0
0
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