mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 355

• Manufacturer Part Number: mcf5407
• Description: Mcf5407 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

Table 14-9 describes RSMP fields.
14.3.9 Transmit Space Available Register (TSPC)
The transmit space available register (TSPC), Figure 14-10, shows available bytes in Tx
FIFO. TSPC supports UART1 only and can be used in UART and modem modes.
Table 14-10 describes TSPC fields.
14.3.10 UART Command Registers (UCRn)
The UART command registers (UCRn), Figure 14-11, supply commands to the UART in
both UART and modem modes. Only multiple commands that do not conflict can be
specified in a single write to a UCRn. For example,
TRANSMITTER
Bits
Bits
7–5
4–0
Address
Address
7–5
4–0
Reset
Reset
Field
Field
R/W
R/W
RSMP
Name
TSPC
Name
—
—
7
7
Figure 14-9. Receive Samples Available Register (RSMP)
Reserved, should be cleared.
Number of empty bytes in the Tx FIFO.
Reserved, should be cleared.
Number of bytes in the Rx FIFO.
cannot be specified in one command.
Figure 14-10. Tx Space Available Register (TSPC)
—
—
—
—
Table 14-10. TSPC Field Descriptions
Table 14-9. RSMP Field Descriptions
Chapter 14. UART Modules
5
5
MBAR + 0x206
MBAR + 0x207
4
4
Read only
Read only
Description
Description
RESET TRANSMITTER
0_0000
0_0000
RSMP
TSPC
Register Descriptions
and
ENABLE
0
0
14-13