xr20m1280 Exar Corporation, xr20m1280 Datasheet - Page 57

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

REV. P1.1.1
F
F
IGURE
IGURE
(GPIO5)
GPIOx
SCLK
DTR#
CS#
SCLK
CS#
SI
SI
30. SPI W
31. SPI W
RITE
RITE
R/W
R/W
MCR
MCR
A3
A3
TO
A2
TO
A2
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
DTR O
DTR O
A1
A1
A0
UTPUT
UTPUT
A0
CH1
CH1
S
S
WITCH
WITCH
CH0
CH0
PRELIMINARY
57
X
X
D7
D7
D6
D6
D5
D5
D4
D4
D3
D3
D2
D2
D1
D1
XR20M1280
D0
D0
T
T
D10
D9