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參數(shù)資料
| 型號： | PCD3350A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
| 中文描述： | 8位雙音多頻發(fā)電機(jī)，256字節(jié)EEPROM和實(shí)時時鐘控制器 |
| 文件頁數(shù)： | 13/36頁 |
| 文件大?。?/td> | 204K |
| 代理商： | PCD3350A |
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1996 Dec 18
13
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator,
256 bytes EEPROM and real-time clock
PCD3350A
7.1
EEPROM registers
7.1.1
EEPROM C
ONTROL
R
EGISTER
(EPCR)
The behaviour of the EEPROM and Timer 2 section is defined by the EEPROM Control Register, as detailed in Tables
9, 10 and 11.
Table 9
EEPROM Control Register, EPCR (address 04H, access type R/W)
Table 10
Description of EPCR bits
Table 11
Mode selection; X = don’t care
7
6
5
4
3
2
1
0
STT2
ET2I
T2F
EWP
MC3
MC2
MC1
0
BIT
SYMBOL
DESCRIPTION
7
STT2
Start T2. If STT2 = 0, then Timer 2 is stopped; T2 value held. If STT2 = 1, then T2
decrements from reload value.
Enable T2 interrupt. If ET2I = 0, then T2F event cannot request interrupt. If ET2I = 1,
then T2F event can request interrupt.
Timer 2 flag. Set when T2 underflows (or by program); reset by program.
Erase or write in progress (EWP). Set by program (EWP starts EEPROM erase and/or
write and Timer 2). Reset at the end of EEPROM erase and/or write.
Mode control 3 to 1. These three bits in conjunction with bit EWP select the mode as
shown in Table 11.
6
ET2I
5
4
T2F
EWP
3
2
1
0
MC3
MC2
MC1
This bit is set to a logic 0.
EWP
MC3
MC2
MC1
DESCRIPTION
0
0
1
1
1
X
X
X
0
0
0
1
1
0
1
1
0
1
1
0
1
0
0
1
0
0
X
0
1
1
1
0
read byte
increment mode
write page
erase/write page
erase page
not allowed
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| PCA3351CP | 8-bit microcontrollers with DTMF generator and 128 bytes EEPROM |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCD3350AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
| PCD3351A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with DTMF generator and 128 bytes EEPROM |
| PCD3351AH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| PCD3351AP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with DTMF generator and 128 bytes EEPROM |
| PCD3351CP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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