MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 475

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

14.7 Queued Serial Peripheral Interface
MPC555
USER’S MANUAL
Bit(s)
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 sys-
tems found on other Motorola 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.
block diagram of the QSPI.
0:7
10
11
12
13
14
15
8
9
/
MPC556
QDDPCS3
QDDPCS2
QDDPCS1
QDDPCS0
QPDMOSI
QPDMISO
QDDSCK
PQSPAR
Name
—
PORTSQS pin assignment register. See
(PQSPAR).
Reserved
QSPI pin data direction for the pin PCS3
0 = Pin direction is input
1 = Pin direction is output
QSPI pin data direction for the pin PCS2
0 = Pin direction is input
1 = Pin direction is output
QSPI pin data direction for the pin PCS1
0 = Pin direction is input
1 = Pin direction is output
QSPI pin data direction for the pin PCS[0]
0 = Pin direction is input
1 = Pin direction is output
QSPI pin data direction for the pin SCK
0 = Pin direction is input
1 = Pin direction is output
QSPI pin data direction for the pin MOSI
0 = Pin direction is input
1 = Pin direction is output
QSPI pin data direction for the pin MISO
0 = Pin direction is input
1 = Pin direction is output
QUEUED SERIAL MULTI-CHANNEL MODULE
Table 14-11 DDRQS Bit Descriptions
Rev. 15 October 2000
Description
14.6.2 PORTQS Pin Assignment Register
Figure 14-4
MOTOROLA
14-13
is a