Queued Serial Multi-Channel Module
MPC561/MPC563 Reference Manual, Rev. 1.2
15-14
Freescale Semiconductor
15.6
Queued Serial Peripheral Interface
The queued serial peripheral interface (QSPI) is used to communicate with external devices through a
synchronous serial bus. The QSPI is fully compatible with SPI systems found on other Freescale products,
but has enhanced capabilities. The QSPI can perform full duplex three-wire or half duplex two-wire
transfers. Several transfer rates, clocking, and interrupt-driven communication options are available.
is a block diagram of the QSPI.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
PQSPAR*
—
QDDP
CS3
QDDP
CS2
QDDP
CS1
QDDP
CS0
QDDSCK QDDMOSI QDDMISO
SRESET
0000_0000_0000_0000
Addr
0x30 5016
Note:
See bit descriptions in
Figure 15-9. PORTQS Data Direction Register (DDRQS)
Table 15-11. DDRQS Bit Descriptions
Bits
Name
Description
0:7
PQSPAR
PORTSQS pin assignment register. See
Section 15.5.2, “PORTQS Pin Assignment
8
—
Reserved
9
QDDPCS3
QSPI pin data direction for the pin PCS3
0 Pin direction is input
1 Pin direction is output
10
QDDPCS2
QSPI pin data direction for the pin PCS2
0 Pin direction is input
1 Pin direction is output
11
QDDPCS1
QSPI pin data direction for the pin PCS1
0 Pin direction is input
1 Pin direction is output
12
QDDPCS0
QSPI pin data direction for the pin PCS0
0 Pin direction is input
1 Pin direction is output
13
QDDSCK
QSPI pin data direction for the pin SCK
0 Pin direction is input
1 Pin direction is output
14
QPDMOSI
QSPI pin data direction for the pin MOSI
0 Pin direction is input
1 Pin direction is output
15
QPDMISO
QSPI pin data direction for the pin MISO
0 Pin direction is input
1 Pin direction is output
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...