Queued Serial Multi-Channel Module
MPC561/MPC563 Reference Manual, Rev. 1.2
15-2
Freescale Semiconductor
Figure 15-1. QSMCM Block Diagram
15.2
Key Features
Standard SPI features are listed below, followed by a list of the additional features offered on the QSPI:
•
Full-duplex, three-wire synchronous transfers
•
Half-duplex, two-wire synchronous transfers
•
Master or slave operation on the SPI bus
•
Programmable master bit rates
•
Programmable clock polarity and phase
•
End-of-transmission interrupt flag
•
Master-master mode fault flag
•
Easily interfaces to simple expansion parts (A/D converters, EEPROMS, display drivers, etc.)
QSPI-enhanced features are as follows:
•
Programmable Queue — up to 32 preprogrammed transfers
•
Programmable Peripheral Chip-Selects — four pins select up to 16 SPI chips
•
Wraparound Transfer Mode — for autoscanning of serial A/D (or other) peripherals, with no CPU
overhead
•
Programmable Transfer Length — from 8–16 bits inclusive
Po
rt
Q
S
SBIU
IMB3*
QSPI
MISO/QGPIO4
SCK/QGPIO6
TXD1/QGPO1
TXD2/QGPO2
RXD1/QGPI1
RXD2/QGPI2
7
QSPI QUEUE RAM
Note: SBIU bus and interface to IMB3 are each 16 bits wide.
PCS3/QGPIO3
2
2
DSCI
SCI2
PCS2/QGPIO2
MOSI/QGPIO5
PCS1/QGPIO1
PCS0/SS/QGPIO0
SCI1
Receive and Transmit Queue
SBI
U
Bu
s
DSCI
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...