參數(shù)資料
型號: W78ERD2A40PL
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封裝: ROHS COMPLIANT, PLASTIC, LCC-44
文件頁數(shù): 22/76頁
文件大?。?/td> 650K
代理商: W78ERD2A40PL
W78ERD2/W78ERD2A
- 22 -
F/W Flash Control
Bit:
7
6
5
4
3
2
1
0
0
WFWIN
OEN
CEN
CTRL3
CTRL2
CTRL1 CTRL0
Mnemonic: SFRCN Address: C7h
BIT
NAME
FUNCTION
7
-
Reserved
6
WFWIN
On-chip Flash EPROM bank select for in-system programming. This bit
should be defined by the loader program in ISP mode.
0: 64-KB Flash EPROM is the destination for re-programming.
1: 4-KB Flash EPROM is the destination for re-programming.
5
OEN
Flash EPROM output enable.
4
CEN
Flash EPROM chip enable.
3 - 0
CTRL[3:0] Flash control signals
Timer 2 Control
Bit:
7
6
5
4
3
2
1
0
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2
CP/RL2
Mnemonic: T2CON Address: C8h
BIT
NAME
FUNCTION
7
TF2
Timer 2 overflow flag: If RCLK and TCLK are 0, this bit is set when Timer 2
overflows or when the count is equal to the value in the capture register in
down-count mode. This bit can also be set by software, and it can only be
cleared by software.
6
EXF2
Timer 2 External Flag: When Timer 2 is in either capture or auto-reload mode
and DCEN is 0, a negative transition on the T2EX pin (P1.1) and EXEN2=1 sets
this flag. This flag can also be set by software. Once set, this flag generates a
Timer-2 interrupt, if enabled, and it must be cleared by software.
5
RCLK
Receive Clock Flag: Set this bit to force Timer 2 into baud-rate generator mode
when receiving data on the serial port in modes 1 or 3.
1 = Timer 2 overflow is the time base.
0 = Timer 1 overflow is the time base.
4
TCLK
Transmit clock Flag: Set this bit to force Timer 2 into baud-rate generator mode
when transmitting data on the serial port in modes 1 or 3.
1 = Timer 2 overflow is the time base.
0 = Timer 1 overflow is the time base.
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