參數(shù)資料
型號: R8820LV
廠商: Electronic Theatre Controls, Inc.
英文描述: 16-BIT RISC MICROCONTROLLER
中文描述: 16位RISC微控制器
文件頁數(shù): 79/98頁
文件大?。?/td> 1000K
代理商: R8820LV
R DC
RISC DSP Controller
R8820LV
RDC Semiconductor Co.
Rev:1.0
Subject to change without notice
79
The definition of PIO pins are configured by the combination of PIO Mode and PIO Direction. And the PIO pin is
programmed individual.
The definition (PIO Mode, PIO Direction) for PIO pin function:
( 0 , 0 ) – Normal operation , ( 0 , 1 ) – PIO input with pull-up/pull-down
( 1 , 0 ) – PIO output , ( 1 , 1 ) -- PIO input without pull-up/pull-down
Bit 15-0 : PDATA15- PDATA0
: PIO Data Bus.
These bits PDATA15- PDATA0 map to the PIO15 –PIO0 which indicate the driven level when the PIO pin as an
output or reflects the external level when the PIO pin as an input.
Bit 15-0 : PDIR 15- PDIR0
, PIO Direction Register.
Set 1: Configure the PIO pin as an input.
Set 0: Configure the PIO pin as an output or as normal pin function.
Bit 15-0: PMODE15-PMODE0
, PIO Mode Bit.
Offset : 74h
Reset Value :
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
PDATA (15 - 0)
PIO Data 0 Register
Offset : 72h
Reset Value : FFFFh
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
PDIR (15 - 0)
PIO Direction 0 Register
Offset : 70h
Reset Value : 0000h
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
PMODE (15 - 0)
PIO Mode 0 Register
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