REV. 1.0.3 2.0 FUNCTIONAL DESCRIPTIONS 2.1 CPU Interface The CPU inter" />
參數(shù)資料
型號(hào)： XR16V554IV80-0A-EB
廠商： Exar Corporation
文件頁數(shù)： 2/43頁
文件大?。?/td> 0K
描述： EVAL BOARD FOR XR16V554 80LQFP
標(biāo)準(zhǔn)包裝： 1
系列： *
XR16V554/554D
10
2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
REV. 1.0.3
2.0 FUNCTIONAL DESCRIPTIONS
2.1
CPU Interface
The CPU interface is 8 data bits wide with 3 address lines and control signals to execute data bus read and
write transactions. The V554 data interface supports the Intel compatible types of CPUs and it is compatible to
the industry standard 16C550 UART. No clock (oscillator nor external clock) is required for a data bus
transaction. Each bus cycle is asynchronous using CS# A-D, IOR# and IOW# or CS#, R/W#, A4 and A3 inputs.
All four UART channels share the same data bus for host operations. A typical data bus interconnection for
Intel and Motorola mode is shown in Figure 4.
FIGURE 4. XR16V554 TYPICAL INTEL/MOTOROLA DATA BUS INTERCONNECTIONS
VCC
DSRA#
CTSA#
RTSA#
DTRA#
RXA
TXA
RIA#
CDA#
GND
A0
A1
A2
UART_CSA#
UART_CSB#
IOR#
IOW#
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
CSA#
CSB#
D0
D1
D2
D3
D4
D5
D6
D7
IOR#
IOW#
UART
Channel A
UART
Channel B
UART_INTB
UART_INTA
INTB
INTA
UART_RESET
RESET
Serial Interface of
RS-232
Serial Interface of
RS-232
Intel Data Bus (16 Mode) Interconnections
UART
Channel C
UART
Channel D
Similar
to Ch A
Similar
to Ch A
Similar
to Ch A
UART_INTD
UART_INTC
INTD
INTC
UART_CSC#
UART_CSD#
CSC#
CSD#
VCC
16/68#
VCC
GND
A0
A1
A2
UART_CS#
A3
R/W#
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
CSA#
CSB#
D0
D1
D2
D3
D4
D5
D6
D7
IOR#
IOW#
UART_IRQ#
INTB
INTA
RESET#
Serial Interface of
RS-232
Serial Interface of
RS-232
Motorola Data Bus (68 Mode) Interconnections
VCC
UART_RESET#
(no connect)
DSRA#
CTSA#
RTSA#
DTRA#
RXA
TXA
RIA#
CDA#
UART
Channel A
UART
Channel B
UART
Channel C
Similar
to Ch A
Similar
to Ch A
Similar
to Ch A
INTC
(no connect)
INTD
(no connect)
A4
CSC#
CSD#
VCC
16/68#
UART
Channel D
VCC
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16V554IV80-F 功能描述:UART 接口集成電路 2.25V-3.6V 16B FIFO temp -45 to 85C;UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16V554IV80TR-F 功能描述:UART 接口集成電路 XR16V554IV80TR-F RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16V554IV-F 功能描述:通用總線函數(shù) UART RoHS:否 制造商:Texas Instruments 邏輯類型:CMOS 邏輯系列:74VMEH 電路數(shù)量:1 開啟電阻（最大值）: 傳播延遲時(shí)間:10.1 ns 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大工作溫度:+ 85 C 最小工作溫度:0 C 封裝 / 箱體:TSSOP-48 封裝:Reel
XR16V554IVTR-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16V564 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 3.6V QUAD UART WITH 32-BYTE FIFO
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