Digi ConnectCore Series User Manual

ConnectCore for i.MX51
©2011DigiInternational,Inc. 49
– SD Memory Card Specification Version 2.0: supports High-Capacity SD Memory Cards
– SDIO Card Specification Version 2.0
Supports 1, 4, or 8 bit MMC modes and 1bit or 4 bit SD and SDIO modes
– Card bus clock frequency up to 52 MHz
– Up to 416 Mbps of data transfer for MMC cards in 8-bit mode
– Up to 200 Mbps of data transfer for SD/SDIO cards in 4-bit mode
– Allows cards to interrupt the host in 1-bit and 4-bit SDIO modes, also supports
interrupt period
The following table shows the memory card signals available on the module connectors:
PWM
The ConnectCore for i.MX51 module provides two PWM interfaces. These PWM interfaces
share the output pad in the i.MX51 CPU with the I
2
C bus used on the module for the
accelerometer. In order to use the PWM signals the I
2
C bus must be disabled.
The main features of the PWM interface are the following:
16-bit up-counter with clock source selection
4 × 16 FIFO to minimize interrupt overhead
12-bit prescaler for division of clock
Sound and melody generation
Active high or active low configured output
Can be programmed to be active in low power and debug modes
Interrupts at compare and rollover
Signal Memory
Card 1
Memory
Card 2
Memory
Card 3
Memory
Card 4
Card Detect (CD #) √√
CLK √√√ √
CMD √√√
LCTL √
WP# √√
DATA3 - DATA0 √√√ √
DATA7 - DATA4 √√√

Digi ConnectCore Series Specifications

General

Brand	Digi
Model	ConnectCore Series
Category	Control Unit
Language	English