參數(shù)資料
型號: P83C524EFB
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: CONN 2O POS BOT ENTRY SFMT (BULK) 4-534991-2 TYCO, FCI BERG 69154-310
中文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 X 1.75 MM, PLASTIC, QFP-44
文件頁數(shù): 41/76頁
文件大?。?/td> 400K
代理商: P83C524EFB
1997 Dec 15
41
Philips Semiconductors
Product specification
8-bit microcontrollers
P83C524; P80C528; P83C528
15.1
Power Control Register (PCON)
Special modes are activated by software via the PCON SFR. PCON is not bit addressable. The reset value of PCON is
0XXX0000.
Table 26
Power Control Register (address 87H)
Table 27
Description of the PCON bits
Notes
1.
2.
If logic 1s are written to PD and IDL at the same time, PD takes precedence.
User software should not write 1s to reserved bits. These bits may be used in future 80C51 family products to invoke
new features.
7
6
5
4
3
2
1
0
SMOD
GF1
GF0
PD
IDL
BIT
SYMBOL
FUNCTION
7
SMOD
Double Baud rate bit
: when set to logic 1 the baud rate is doubled when Timer 1 is
used to generate baud rate, and the Serial Port is used in modes 1, 2 or 3.
reserved
for future use
reserved
for future use
reserved
for future use
general-purpose
flag bit
general-purpose
flag bit
Power-down bit
: setting this bit activates Power-down mode
Idle mode bit
: setting this bit activates the Idle mode.
6
5
4
3
2
1
0
GF1
GF0
PD
IDL
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