TMP86C993XB Toshiba, TMP86C993XB Datasheet - Page 147

• Manufacturer Part Number: TMP86C993XB
• Description: EMULATION CHIP FOR TMP86F SSOP
• Manufacturer: Toshiba

Specifications of TMP86C993XB

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

13.6
13.7
13.8
13.8.1
13.8.2
Select a transmit stop bit length (1 bit or 2 bits) by UART2CR1<STBT>.
Set parity / no parity by UART2CR1<PE> and set parity type (Odd- or Even-numbered) by UART2CR1<EVEN>.
STOP Bit Length
Parity
Transmit/Receive Operation
TD2BUF (Transmit data buffer). Writing data in TD2BUF zero-clears UART2SR<TBEP>, transfers the data to
the transmit shift register and the data are sequentially output from the TXD2 pin. The data output include a one-
bit start bit, stop bits whose number is specified in UART2CR1<STBT> and a parity bit if parity addition is
specified. Select the data transfer baud rate using UART2CR1<BRG>. When data transmit starts, transmit buffer
empty flag UART2SR<TBEP> is set to “1” and an INTTXD2 interrupt is generated.
written to TD2BUF, the TXD2 pin is fixed at high level. When transmitting data, first read UART2SR, then write
data in TD2BUF. Otherwise, UART2SR<TBEP> is not zero-cleared and transmit does not start.
RD2BUF (Receive data buffer). At this time, the data transmitted includes a start bit and stop bit(s) and a parity
bit if parity addition is specified. When stop bit(s) are received, data only are extracted and transferred to RD2BUF
(Receive data buffer). Then the receive buffer full flag UART2SR<RBFL> is set and an INTRXD2 interrupt is
generated. Select the data transfer baud rate using UART2CR1<BRG>.
data buffer) but discarded; data in the RD2BUF are not affected.
Set UART2CR1<TXE> to “1”. Read UART2SR to check UART2SR<TBEP> = “1”, then write data in
While UART2CR1<TXE> = “0” and from when “1” is written to UART2CR1<TXE> to when send data are
Set UART2CR1<RXE> to “1”. When data are received via the RXD2 pin, the receive data are transferred to
If an overrun error (OERR) occurs when data are received, the data are not transferred to RD2BUF (Receive
Data Transmit Operation
Data Receive Operation
Note:When a receive operation is disabled by setting UART2CR1<RXE> bit to “0”, the setting becomes valid
when data receive is completed. However, if a framing error occurs in data receive, the receive-disabling
setting may not become valid. If a framing error occurs, be sure to perform a re-receive operation.
Page 133
TMP86FH92DMG