MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 276
MMC2114
Manufacturer Part Number
MMC2114
Description
M CORE Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MMC2114.pdf
(654 pages)
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Ports Module
12.4.2.2 Port Data Direction Registers
Advance Information
276
Address: 0x00c0_000c — DDRA
A port data direction registers (DDRx) control the direction of the port x
pin drivers when the pins are configured for digital I/O. Setting any bit in
DDRx configures the corresponding port x pin as an output. Clearing any
bit in DDRx configures the corresponding pin as an input. When a pin is
not configured for digital I/O, its corresponding data direction bit has no
effect.
DDRx are read/write registers when not in emulation mode. Reset clears
DDRx.
DDRx[7:0] — Port x Data Direction Bits
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = Pin configured as output
0 = Pin configured as input
0x00c0_000d — DDRB
0x00c0_000e — DDRC
0x00c0_000f — DDRD
0x00c0_0010 — DDRE
0x00c0_0011 — DDRF
0x00c0_0012 — DDRG
0x00c0_0013 — DDRH
0x00c0_0014 — DDRI
DDRx7
Figure 12-3. Port Data Direction Registers (DDRx)
Bit 7
0
Go to: www.freescale.com
DDRx6
6
0
Ports Module
DDRx5
5
0
DDRx4
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
4
0
DDRx3
3
0
DDRx2
2
0
DDRx1
1
0
MOTOROLA
DDRx0
Bit 0
0
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