xr20m1280 Exar Corporation, xr20m1280 Datasheet - Page 58

• Manufacturer Part Number: xr20m1280
• Description: I2c/spi Uart With 128-byte Fifo And Integrated Level Shifters
• Manufacturer: Exar Corporation

XR20M1280
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
F
F
IGURE
IGURE
SCLK
IRQ#
CS#
SO
SI
GPIOx
SCLK
IRQ#
CS#
SI
32. SPI W
33. R
EAD
R/W
MSR
RITE
R/W
THR
A3
TO
A3
C
A2
TO
LEAR
A2
C
LEAR
A1
M
A1
ODEM
A0
TX INT
A0
INT
CH1
CH1
PRELIMINARY
CH0
CH0
58
X
X
T
D7
D12
D7
D6
D6
D5
D5
D4
D4
D3
D3
D2
D2
D1
D1
D0
D0
td11
REV. P1.1.1