Toshiba TX49 TMPR4937, Manual

Page: 381 / 553

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
Reserved
: Type
: Initial value
15 13 12 11 10 9 8 7 6 5 4 1 0
Reserved RCS TES
Reserved
RTSSC
RSDE TSDE Reserved 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
Bit Mnemonic Field Name Description Read/Write
31:13 Reserved
⎯
12 RCS RTS Signal
Control Select RTS Control Select (Default: 0)
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. R/W
11 TES CTS Signal
Control Select CTS Control Select (Default: 0)
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. R/W
10 Reserved
⎯
9 RTSSC RTS Software
Control RTS Software Control (Default: 0)
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) R/W
8 RSDE Serial Data
Reception
Disable Receive Serial Data Disable (Default: 1)
This is the Serial Data Disable 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) R/W
7 TSDE Serial Data
Transmit Disable Transmit Serial Data Disable (Default: 1)
This is the Serial Data Transmission Disable 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) R/W
6:5 Reserved
⎯
4:1 RTSTL RTS Active
Trigger Level RTS Trigger Level (Default: 0001)
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 R/W
0 TBRK Break
Transmission Break Transmit (Default: 0)
Transmits a break. The TXD signal is Low while TBRK is set to “1”.
0: Disable (clear break)
1: Enable (transmit break) R/W
Figure 11.4.6 Flow Control Register