MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 447
![KIT EVALUATION FOR MPC555](/photos/39/39/393932/mpc555evbimage_sml.jpg)
MPC555CME
Manufacturer Part Number
MPC555CME
Description
KIT EVALUATION FOR MPC555
Manufacturer
Freescale Semiconductor
Type
Microcontrollerr
Datasheet
1.MPC555CME.pdf
(966 pages)
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
- Current page: 447 of 966
- Download datasheet (13Mb)
DDRQA — Port QA Data Direction Register
QACR0 — QADC64 Control Register 0
13.12.5 Port Data Direction Register
RESET:
13.12.6 QADC64 Control Register 0 (QACR0)
RESET:
MPC555
USER’S MANUAL
DDQA7
Bit(s)
MSB
MSB
MUX
0:7
0
0
0
0
Control register zero establishes the QCLK with prescaler parameter fields and de-
fines whether external multiplexing is enabled. All of the implemented control register
fields can be read or written, reserved fields read zero and writes have no effect. They
are typically written once when the software initializes the QADC64, and not changed
afterwards.
DDQA
RESERVED
DDQA[7:0]
/
1
6
0
1
0
MPC556 QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE-64
Name
DDQA
2
5
0
2
0
Bits in this register control the direction of the port QA pin drivers when pins are configured for I/
O. Setting a bit configures the corresponding pin as an output; clearing a bit configures the cor-
responding pin as an input. This register can be read or written at any time.
DDQA
TRG
3
4
0
3
0
DDQA
Table 13-10 DDRQA Bit Descriptions
4
3
0
4
0
RESERVED
DDQA
5
2
0
5
0
DDQA
Rev. 15 October 2000
6
1
0
6
0
DDQA
7
0
0
7
0
8
0
8
1
Description
PSH
9
0
9
0
10
10
0
1
RESERVED
11
11
0
1
PSA
12
12
0
0
13
13
0
1
0x30 4C0A
0x30 4C08
0x30 480A
0x30 4808
MOTOROLA
PSL
14
14
0
1
13-35
LSB
LSB
15
15
0
1
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