TMP92CH21FG Datasheet, PDF (159/540 Pages) Toshiba Semiconductor – CMOS 32-Bit Microcontroller

TMP92CH21
3.9 Serial Channels
The TMP92CH21 includes 2 serial I/O channels. For each channel, either UART mode
(asynchronous transmission) or I/O interface mode (synchronous transmission) can be selected.
I/O interface mode
UART mode
Mode 0: For transmitting and receiving I/O data using the
synchronizing signal SCLK for extending I/O.
Mode 1:
Mode 2:
Mode 3:
7-bit data
8-bit data
9-bit data
In mode 1 and mode 2 a parity bit can be added. Mode 3 has a wakeup function for making the
master controller start slave controllers via a serial link (a multi controller system).
Figure 3.9.2, Figure 3.9.3 are block diagrams for each channel.
Each channel can be used independently.
Each channel operates in the same fashion except for the following points; hence only the
operation of channel 0 is explained below.
Table 3.9.1 Differences between Channels 0 to 1
Channel 0
Channel 1
Pin name
IrDA mode
TXD0 (P90 or PF0)
RXD0 (P91 or PF1)
CTS0 , SCLK0
(P92 or PF2)
Yes
TXD1 (PF0)
RXD1 (PF1)
CTS1 , SCLK1 (PF2)
No
This chapter contains the following sections:
3.9.1 Block diagram
3.9.2 Operation of each circuit
3.9.3 SFR
3.9.4 Operation in each mode
3.9.5 Support for IrDA mode
92CH21-157
2007-02-28