Toshiba TMPR4925, Manual

Page: 383 / 590

Chapter 11 Serial I/O Port
11-21
11.4.6 Flow Control Register 0 (SIFLCR0) 0xF314 (Ch. 0)
Flow Control Register 1 (SIFLCR1) 0xF414 (Ch. 1)
31 16
0
: Type
: Initial value
15 13 12 11 10 9 8 7 6 5 4 1 0
0 RCS TES 0
RTSSC
RSDE TSDE 0 RTSTL TBRK
R/W R/W R/W R/W R/W R/W R/W : Type
0 0 0 1 1 0001 0 : Initial value
Bits Mnemonic Field Name Description
31:13
⎯
Reserved
⎯
12 RCS RTS Signal
Control Select RTS Control Select (Initial value: 0, R/W)
This field sets the reception flow control using RTS output signals.
0: Disable flow control using RTS signals.
1: Enable flow control using RTS signals.
11 TES
CTS Signal
Control Select
CTS Control Select (Initial value: 0, R/W)
This field sets the transmission flow control using CTS input signals.
0: Disable flow control using CTS signals.
1: Enable flow control using CTS signals.
10
⎯
Reserved
⎯
9 RTSSC RTS Software
Control
RTS Software Control (Initial value: 0, R/W)
This register is used for software control of RTS output signals.
0: Set the RTS signal to Low (can receive data).
1: Sets the RTS signal to High (transmission pause request)
8 RSDE
Serial Data
Reception
Enable
Receive Serial Data Enable (Initial value: 1, R/W)
This is the Serial Data Enable bit. When this bit is cleared, data reception starts
after the start bit is detected. The RTS signal will not become High even if this bit is
cleared.
0: Enable (can receive data)
1: Disable (halt reception)
7 TSDE Serial Data
Transmit Enable Transmit Serial Data Enable (Initial value: 1, R/W)
This is the Serial Data Transmission Enable bit. When this bit is cleared, data
transmission starts. When set, transmission stops after completing transmission of
the current frame.
0: Enable (can transmit data)
1: Disable (halt transmission)
6:5
⎯
Reserved
⎯
4:1 RTSTL
RTS Active
Trigger Level
RTS Trigger Level (Initial value: 0001, R/W)
The RTS hardware control assert level is set by the reception data stage count of
the Receive FIFO.
0000: Disable setting
0001: 1
:
1111: 15
0 TBRK Break
Transmission Break Transmit (Initial value: 0, R/W)
Transmits a break. The TXD signal is Low while TBRK is set to “1”.
0: Disable (clear break)
1: Enable (transmit break)
Figure 11.4.6 Flow Control Register