參數(shù)資料
型號(hào): MCP2140
廠商: Microchip Technology Inc.
英文描述: IrDA Standard Protocol Stack Controller With Fixed 9600 Baud Communication Rate(固定波特率,低成本,IrDA標(biāo)準(zhǔn)協(xié)議編譯碼器)
中文描述: 標(biāo)準(zhǔn)的IrDA協(xié)議棧控制器,固定通信速率9600波特(固定波特率,低成本,紅外標(biāo)準(zhǔn)協(xié)議編譯碼器)
文件頁數(shù): 6/58頁
文件大小: 1001K
代理商: MCP2140
MCP2140
DS21790A-page 6
Preliminary
2003 Microchip Technology Inc.
RTS
13
13
14
I
TTL
Request to Send. Indicates that a Host Controller is ready to
receive data from the MCP2140. This signal is locally emu-
lated and not related to the CTS/RTS bit of the IrDA Primary
device.
1
= Host Controller not ready to receive data
0
= Host Controller ready to receive data
Positive supply for logic and I/O pins.
Oscillator crystal output.
CMOS Oscillator crystal input/external clock source input.
ST
Carrier Detect.
The state of this bit is communicated to the
IrDA Primary device via the IrDA CD bit.
1
= No Carrier Present
0
= Carrier Present
A
IR RX Photo Detect Diode input. This input signal is required
to be a pulse to indicate an IR bit. When the amplitude of the
signal crosses the amplitude threshold set by the RXPDREF
pin, the IR bit is detected. The pulse has minimum and max-
imum requirements as specified in
Parameter IR131A
.
ST = Schmitt Trigger input with CMOS levels
P = Power
OC = Open collector output
O = Output
V
DD
OSC2
OSC1/CLKIN
CD
14
15
16
17
14
15
16
17
15, 16
17
18
19
O
I
I
P
RXPD
18
18
20
I
TABLE 1-2:
MCP2140 PIN DESCRIPTION NORMAL OPERATION (DCE) (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
PDIP
SOIC
SSOP
Description
Legend:
TTL = TTL compatible input
A = Analog
CMOS = CMOS compatible input
I = Input
1:
The state of the DTR output pin does not reflect the state of the DTR bit of the IrDA Primary Device.
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