参数资料
型号: SAF-TC11IB-64D96EBC
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 96 MHz, RISC MICROCONTROLLER, PBGA388
封装: PLASTIC, BGA-388
文件页数: 43/110页
文件大小: 1303K
代理商: SAF-TC11IB-64D96EBC
TC11IB
Data Sheet
34
V2.4, 2004-06
MultiMediaCard Interface (MMCI)
The MultiMediaCard Interface module provides interface to MultiMediaCard bus. It
supports the full MultiMediaCard bus protocol as defined in MultiMediaCard system
specification version 1.3. Figure 9 shows a global view of the MMCI module with the
module specific interface connections.
Figure 9
General Block Diagram of MMCI Interface
The MMCI module communicates with external world via two IO lines and five output
lines which are located at Port 1, 2 and 5. Clock control, interrupt service and address
decoding are managed outside the MMCI module Kernel.
MMCI handles the data transfer on CMD and DAT of the MMC Bus. It performs the
transfer from bit serial to byte parallel or vice versa and sustains a 16Mbps data rate. To
fulfil the MMC Bus protocol, special bytes are modified via inserting start and stop bits or
CRC bits. A clock controller is implemented to divide the clock to the necessary MMC
Bus clock frequency.
Features
3 line serial interface --- Glueless interface to MultiMediaCard Bus
Pointer based data transfer
Block and sequential card access
16MHz MultiMediaCard bus clock generation
CRC protection for the MultiMediaCard bus communication
Optional programming voltage control
Buffered data transfer
Power management
Data communication with a data rate up to 2 Mbyte/s
M C B 0 4 946
Clo ck
C ontro l
A ddre ss
D e coder
In te rru p t
C ontro l
f
MMC I
M odu le
Po rt
C ontro l
P 5 .1 5 / M M C I_ R O D
P 5 .2 / M M C I_ C M D _ R W
P 5 .0 / M M C I_ D A T _ R W
P 2 .7 / M M C I_ V D D E N
P 1 .5 / M M C I_ D A T
P 1 .4 / M M C I_ C M D
P 1 .3 / M M C I_ C L K
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