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參數(shù)資料

型號：	W921E843A
廠商：	WINBOND ELECTRONICS CORP
元件分類：	微控制器/微處理器
英文描述：	4-BIT MICROCONTROLLER
中文描述：	4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP40
封裝：	DIP-40
文件頁數(shù)：	22/58頁
文件大小：	449K
代理商：	W921E843A

W921E840A/W921C840

- 22 -

SRMNR register: (address = 00AH, default data = 0H)

SRLNR register: (address = 009H, default data = 2H)

The default data in SRMNR and SRLNR are 0 and 2, meaning that the default serial interface is used

to transmit/receive 8-bit data serially. As soon as the above two register are programmed and the

instructions such as SOP or SIP are executed, the serial transmitter/receiver multi-nibble function will

be performed. The transmitted/received number will be auto increased by one when each nibble is

transmitted/received until the number is equal to SRLNR, SRMNR registers. Even if the HOLD

instruction is executed, the SOP or SIP function will continue executing until the transmitter/receiver

function has been completed. However, executing the STOP instruction will stop all serial

transmitter/receiver function.

The transceiver data will be latched on the rising or falling edge of the clock; this is determined by the

serial clock inverter control register (SRINV, address = 00CH). Before SOP or SIP instruction is

executed the SRINV register must be set to the exact value. Once the bit3 and bit2 of SRINV register

are both cleared to zero, the serial transceiver function will be reset to initial status immediately.

SRINV register: (address = 00CH, default data = 0H)

0: Serial data latch at SCLK1/SCLK2 rising edge

(normal high)

1: Serial data latch at SCLK1/SCLK2 falling edge

(normal low)

1: SCLK1 and SDATA1 enable

1: SCLK2 and SDATA2 enable

0: SCLK1and SCLK2 pins work as the internal

clock output pin

1: SCLK1and SCLK2 pins work as the external

clock input pin

0: SCLK2 and SDATA2 disable (H-Z)

0: SCLK1 and SDATA1 disable (H-Z)

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
W921E880	制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W921E880A	制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W925C240	制造商:未知廠家制造商全稱:未知廠家功能描述:Telephone Controller
W925C625	制造商:WINBOND 制造商全稱:Winbond 功能描述:8-bit CID MICROCONTROLLER
W925E240	制造商:未知廠家制造商全稱:未知廠家功能描述:Telephone Controller

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