Ver 1.3
PRELIMINARY
EAGLE
CS0x
O
B
Bank 0 ROM Chip Select (Active Low)
Chip Select bank 1(Active Low) or Programmable I/O [16]
CS1x / GPIO[16]
This signal can be configured as chip select signal of bank 1 for SRAM/ROM or
programmable I/O port[16], as determined by pin mux control register.
Chip Select bank 2(Active Low) or Programmable I/O [17]
CS2x / GPIO[17]
CS3x / GPIO[18]
B
B
This signal can be configured as chip select signal of bank 2 for SRAM/ROM or
programmable I/O port[17], as determined by pin mux control register.
Chip Select bank 3(Active Low) or Programmable I/O [18]
This signal can be configured as chip select signal of bank 3 for SRAM/ROM or
programmable I/O port[18], as determined by pin mux control register.
Chip Select bank 4 (Active Low) or SPI_SSx (Active Low) or Programmable I/O[19]
CS4x / SPI_SSx / GPIO[19]
B
This signal can be configured as chip select signal of bank4 for SRAM/ROM, select
signal for SPI device or programmable I/O port[19], as determined by pin mux
control register.
CS5x
RDx
WRx
O
O
O
Bank 5 SRAM/ROM/SDRAM Chip Select (Active Low)
SRAM/ROM Read Strobe (Active Low)
SRAM/ROM Write Strobe (Active Low)
SD Card Data [1] or SPI Master Output Slave Input or DMA Ch.1 Acknowledge
signal (Active Low) or Programmable I/O[103]
SDCD_DATA[1] / SPI_MOSI /
DMA_ACKx[1] / GPIO[103]
B
B
B
B
B
B
B
This signal can be configured as data[1] of SD card, Master Output Slave Input
(MOSI) signal of SPI, acknowledge signal of DMA Ch.1 (Active Low) or
programmable I/O[103], as determined by pin mux control register.
SD Card Data [0] or SPI Master Input Slave Output or DMA Ch.1 Request Strobe
signal (Active Low) or Programmable I/O[102]]
SDCD_DATA[0] / SPI_MISO /
DMA_REQx[1] / GPIO[102]
This signal can be configured as data[0] of SD card, Master Input Slave Output of
SPI, request signal of DMA Channel 1 or programmable I/O port[102], as determined
by Pin Mux Control Register.
SD Card Clock or SPI Serial Clock or External Interrupt Source[4] or Programmable
I/O[101]]
SDCD_CLK / SPI_SCK /
EXT_IRQ[4] / GPIO[101]
This signal can be configured as clock signal of SD card, serial clock of SPI, external
interrupt source[4] or programmable I/O[101], as determined by pin mux control
register.
SD Card Command signal or Wait signal (Active Low) or I2S Serial Data Input or
Programmable I/O[100]
SDCD_CMD / WAITx /
I2S_SDI / GPIO[100]
This signal can be configured as command signal of SD card, wait signal (Active
Low), serial data input of I2S or programmable I/O[100], as determined by pin mux
control register.
SD Card Data[3] or Key Scan Line Output[2] or External Interrupt Source[7] or
SRAM or ROM Byte Enable[3] (Active Low)
SDCD_DATA[3] / KEY_OUT[2] /
EXT_IRQ[7] / BEx[3]
This signal can be configured as data[3] of SD card, line output[2] of key scan,
external interrupt source[7] or byte enable[3] for SRAM or ROM when 32-bit bus
width is used, as determined by pin mux control register.
SD Card Data[2] or Key Scan Data Input[2] or External Interrupt Source[6] or
SRAM or ROM Byte Enable[2] (Active Low)
SDCD_DATA[2] / KEY_IN[2] /
EXT_IRQ[6] / BEx[2]
This signal can be configured as data[2] of SD card or data input[2] of key scan,
external interrupt source[6] or byte enable[2] for SRAM or ROM when 32-bit bus
width is used, as determined by pin mux control register.
Nand Flash Memory Busy signal (Active Low) or Non-Maskable Interrupt or
Programmable I/O[20]
NDFL_BUSYx / NMIx / GPIO[20]
This signal can be configured as busy signal of NAND flash memory (Active Low),
non-maskable interrupt signal to CPU or programmable I/O[20], as determined by
pin mux control register.
25
CONFIDENTIAL
Beijing Peak Microtech Co.Ltd.
ETC [ ETC ]
