Peripheral Pin Multiplexing (PPM) Module
MPC561/MPC563 Reference Manual, Rev. 1.2
18-18
Freescale Semiconductor
18.4.6
Receive Shift Register (RX_SHIFTER)
RX_SHIFTER receives data serially from the PPM input signals PPM_RX[0:1] (depending on the value
of PPMPCR[OP_16_8]). Data bits are shifted in on every PPM_TCLK cycle. Data in the RX_SHIFTER
register is delivered directly to the MPC561/MPC563 internal modules with no wait time.
18.4.7
Transmit Data Register (TX_DATA)
TX_DATA contains data from the internally multiplexed modules that is to be transmitted from the PPM
module on the PPM_TX[1:0] signals (depending on the value in PPMPCR[OP_16_8]). Data bits are
transmitted serially (shifted out) on each PPM_TCLK cycle. The data is shifted out least significant bit
(LSB) first, therefore TX_DATA15 first, TX_DATA0 last.
18.4.8
General-Purpose Data Out (GPDO)
GPDO is an internal register whose data can be transmitted serially through the PPM. By default, the
transmit configuration registers are set to transmit from this register. The value in GPDO[0:15] is written
into TX_DATA[0:15].
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
RX_DATA
SRESET
0000_0000_0000_0000
Addr
0x30 5C16
Figure 18-18. Receive Data Register (RX_DATA)
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
RX_SHIFTER
SRESET
0000_0000_0000_0000
Addr
0x30 5C1A
Figure 18-19. Receive Shifter Register (RX_SHIFTER)
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
TX_DATA
SRESET
0000_0000_0000_0000
Addr
0x30 5C1E
Figure 18-20. Transmit Data Register (TX_DATA)
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...