TMP86C909XB Toshiba, TMP86C909XB Datasheet - Page 122

• Manufacturer Part Number: TMP86C909XB
• Description: EMULATION CHIP FOR TMP86F SDIP
• Manufacturer: Toshiba

Specifications of TMP86C909XB

• Accessory Type: Adapter
• For Use With/related Products: TMP86F SDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDBUF
TXD pin
UARTSR<TBEP>
INTTXD interrupt
Shift register
10.9.6 Transmit End Flag
TXD pin
UARTSR<TBEP>
UARTSR<TEND>
INTTXD interrupt
Shift register
Figure 10-10 Generation of Transmit End Flag and Transmit Data Buffer Empty
UARTSR<TEND> is set to “1”. The UARTSR<TEND> is cleared to “0” when the data transmit is stated after
writing the TDBUF.
When data are transmitted and no data is in TDBUF (UARTSR<TBEP> = “1”), transmit end flag
***** 1
xxxx
Figure 10-9 Generation of Transmit Data Buffer Empty
***
1xx
1xxxx0
Start
****
Data write
* 1xxxx
1x
Bit 0
yyyy
***** 1
Stop
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Data write for TDBUF
Final bit
**** 1x
***** 1
Stop
After reading UARTSR writing TDBUF
clears TBEP.
1yyyy0
1yyyy0
Start
zzzz
Data write
TMP86F409NG
* 1yyyy
Bit 0