Reference Manual

47 ConnectCore 9M 2443 & Wi-9M 2443 Hardware Reference
Chapter 1
 CPU Interface and DMA data transfer mode
 1-bit / 4-bit / 8-bit mode switch support
 Auto CMD12 support
 Suspend / Resume support
 Read Wait operation support
 Card Interrupt support
 CE-ATA mode support
The control lines are available on X2.
High speed SPI The High Speed Serial Peripheral Interface (HS_SPI) can interface the serial data
transfer. HS_SPI has two 8-bit shift registers for transmission and receiving,
respectively. During an SPI transfer, data is simultaneously transmitted (shifted out
serially) and received (shifted in serially). HS_SPI supports the protocols for National
Semiconductor Microwire and Motorola Serial Peripheral Interface.
Features:
 Full duplex support
 8-bit shift register for TX/RX
 8-bit prescale logic
 3 clock sources
 8-bit/32-bit bus interface
 Motorola SPI protocol and National Semiconductor Microwire compliant
 Two independent transmit and receive FIFOs (16 samples deep/32-bits wide)
 Master-mode and slave-mode
 Receive-without-transmit operation
External
address/data bus
The external address/data bus supports:
 64MB address space per external chip select
 Programmable 8/16-bit data bus width
 Four external chip selects
 Complete programmable access cycles for all memory banks
 External wait signals to expand the bus cycle
WLAN connectors In addition to the wired Ethernet interface, the ConnectCore Wi-9M 2443 module
also offers an integrated dual-diversity 802.11a/b/g interface with data rates up to
54 Mbps. Two U.FL antenna connectors are provided on the module. For the Connect
Core Wi-9M 2443, attach the antennas with the U.FL-RP-SMA FEMALE Cable to the