EZ80190AZ050SC00TR Zilog, EZ80190AZ050SC00TR Datasheet - Page 86

• Manufacturer Part Number: EZ80190AZ050SC00TR
• Description: IC EZ80 ACCLAIM 50MHZ 100LQFP
• Manufacturer: Zilog

Specifications of EZ80190AZ050SC00TR

• Processor Type: eZ80
• Features: High Speed, Single-Cycle Instruction-Fetch
• Speed: 50MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PS006614-1208
UART FIFO Control Registers
Table 31. UART FIFO Control Registers
Bit
Reset
CPU Access
Note: W = Write Only.
Bit
Position
[7:6]
TRIG
[5:3]
1
CLRTXF
2
CLRRXF
0
FIFOEN
These registers, listed in
and enable or disable the FIFO. The UARTx_FCTL registers share the same I/O addresses
as the UARTx_IIR registers.
Value
00
01
10
11
000b
0
1
0
1
0
1
Description
The receive FIFO trigger level is set to 1. A receive data
interrupt is generated when there is 1 byte in the FIFO. This bit
is valid only if the FIFO is enabled.
The receive FIFO trigger level set to 4. The receive data
interrupt is generated when there are 4 bytes in the FIFO. This
bit is valid only if the FIFO is enabled.
The receive FIFO trigger level set to 8. The receive data
interrupt is generated when there are 8 bytes in the FIFO. This
bit is valid only if the FIFO is enabled.
The receive FIFO trigger level set to 14. The receive data
interrupt is generated when there are 14 bytes in the FIFO.
This bit is valid only if the FIFO is enabled.
Reserved—must be 000b.
This bit produces no effect.
This bit clears the transmit FIFO and resets the transmit FIFO
pointer. This bit is valid only if the FIFO is enabled.
This bit produces no effect.
This bit clears the receive FIFO, clears the receive error FIFO,
and resets the receive FIFO pointer. This bit is valid only if the
FIFO is enabled.
The transmit and receive FIFOs are disabled. The transmit and
receive buffers are only one byte deep.
The transmit and receive FIFOs are enabled.
W
7
0
Table
W
6
0
31, are used to monitor trigger levels, clear FIFO pointers,
W
5
0
(UART0_FCTL = C2h, UART1_FCTL = D2h)
W
4
0
Universal Asynchronous Receiver/Transmitter
W
3
0
W
2
0
Product Specification
W
1
0
W
0
1
eZ80190
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