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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 77/98頁(yè) |
| 文件大?。?/td> | 1000K |
| 代理商： | R8820LV |
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R DC
18. PIO Unit
R8820LV provides 32 programmable I/O signals, which are multi-function pins with others normal function signals. Software
RISC DSP Controller
R8820LV
RDC Semiconductor Co.
Rev:1.0
Subject to change without notice
77
is programmed through the registers ( 7Ah, 78h, 76h, 74h, 72h, 70h) to configure the multi-function pins for PIO or normal
function.
18.1 PIO multi-function Pin list table
PIO No.
Pin No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Multi Function
TMRIN1
TMROUT1
PCS6 /A2
PCS5 /A1
DT/
R
DEN
SRDY
A17
A18
A19
TMROUT0
TMRIN0
DRQ0/INT5
DRQ1/INT6
MCS
MCS
PCS
PCS
Reset status/PIO internal resister
Input with 10k pull-up
Input with 10k pull-down
Input with 10k pull-up
Input with 10k pull-up
Normal operation/ Input with 10k pull-up
Normal operation/ Input with 10k pull-up
Normal operation/ Input with 10k pull-down
Normal operation/ Input with 10k pull-up
Normal operation/ Input with 10k pull-up
Normal operation/ Input with 10k pull-up
Input with 10k pull-down
Input with 10k pull-up
Input with 10k pull-up
Input with 10k pull-up
Input with 10k pull-up
Input with 10k pull-up
Input with 10k pull-up
Input with 10k pull-up
72
73
59
60
48
49
46
22
20
19
74
75
77
76
50
51
66
65
0
1
0
1
D
Q
D
Q
OE
Write
PDATA
VCC
VCC
For internal
pull-up
For internal
pull-down
Pin
"0":un-normal function
Normal Data In
Read
PDATA
Microprocessor
Clock
PIO
Direction
PIO
Mode
Normal Function
PIO Data In/Out
PIO pin Operation Diagram
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