TABLE 13: UART R" />
參數(shù)資料
型號: XR16M554DIV-0B-EVB
廠商: Exar Corporation
文件頁數(shù): 22/46頁
文件大小: 0K
描述: EVAL BOARD FOR XR16M554DB 64LQFP
標準包裝: 1
系列: *
XR16M554/554D
29
REV. 1.0.0
1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
TABLE 13: UART RESET CONDITIONS FOR CHANNELS A-D
REGISTERS
RESET STATE
DLM, DLL
DLM = 0x00 and DLL = 0x01. Only resets to these val-
ues during a power up. They do not reset when the
Reset Pin is asserted.
RHR
Bits 7-0 = 0xXX
THR
Bits 7-0 = 0xXX
IER
Bits 7-0 = 0x00
FCR
Bits 7-0 = 0x00
ISR
Bits 7-0 = 0x01
LCR
Bits 7-0 = 0x00
MCR
Bits 7-0 = 0x00
LSR
Bits 7-0 = 0x60
MSR
Bits 3-0 = Logic 0
Bits 7-4 = Logic levels of the inputs inverted
SPR
Bits 7-0 = 0xFF
I/O SIGNALS
RESET STATE
TX
HIGH
RTS#
HIGH
DTR#
HIGH
RXRDY#
HIGH
TXRDY#
LOW
INT
(16 Mode)
XR16M554 = Three-State Condition (INTSEL = LOW)
XR16M554 = LOW (INTSEL = HIGH)
XR16M554D = LOW
IRQ#
(68 Mode)
HIGH (INTSEL = LOW)
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