CC-W9M-NA37-XE Digi International, CC-W9M-NA37-XE Datasheet - Page 42
![no-image](/images/manufacturer_photos/0/1/193/digi_international_sml.jpg)
CC-W9M-NA37-XE
Manufacturer Part Number
CC-W9M-NA37-XE
Description
MOD WI-9M 64MB SDRAM 128MB FLASH
Manufacturer
Digi International
Series
-r
Datasheet
1.CC-W9M-NA37-XE.pdf
(145 pages)
Specifications of CC-W9M-NA37-XE
Module/board Type
Core Module
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
Networking
- Current page: 42 of 145
- Download datasheet (8Mb)
www.digiembedded.com
SD host interface
PWM timer
The S3C2443 Secure Digital Interface (SDI) can interface for SD memory card, SDIO
device and Multi-Media Card (MMC).
Features:
The following shows the SD host block diagram:
The S3C2443 has five 16-bit timers. Timer 0, 1, 2, and 3 have Pulse Width Modulation
(PWM) function. Timer 4 has an internal timer only with no output pins. The timer 0
has a dead-zone generator, which is used with a large current device. The timer 0 and
1 share an 8-bit prescaler, while the timer 2, 3 and 4 share other 8-bit prescaler. Each
timer has a clock divider, which generates 5 different divided signals (1/2, 1/4, 1/8,
1/16, and TCLK). Each timer block receives its own clock signals from the clock
divider, which receives the clock from the corresponding 8-bit prescaler. The 8-bit
prescaler is programmable and divides the PCLK according to the loading value,
which is stored in TCFG0 and TCFG1 registers.
The timer count buffer register (TCNTBn) has an initial value which is loaded into the
down-counter when the timer is enabled. The timer compare buffer register
SD Memory Card Spec. (ver. 1.0) / MMC Spec. (2.11) compatible
SDIO Card Spec (ver. 1.0) compatible
16 words (64 bytes) FIFO (depth 16) for data Tx/Rx
40-bit Command Register
136-bit Response Register
8-bit Prescaler logic (Freq. = System Clock / (P + 1))
Normal, and DMA Data Transfer Mode (byte, halfword, word transfer)
1bit / 4bit (wide bus) Mode & Block / Stream Mode Switch support
DMA burst4 access support (only word transfer)
42
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