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參數(shù)資料
| 型號(hào)： | HB28B128MM2 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte |
| 中文描述： | 多媒體16 Mbyte/32 Mbyte/64 Mbyte/128字節(jié) |
| 文件頁(yè)數(shù)： | 3/88頁(yè) |
| 文件大?。?/td> | 329K |
| 代理商： | HB28B128MM2 |
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HB28E016/D032/D064/B128MM2
3
Block Diagram
1
2
3
4
V
PP
Generator
5
6
7
Internal clock
Interface
CID[127:0]
CSD[127:0]
RCA[15:0]
OCR[31:0]
Flash control
Core control
C
P
R
s
D
V
CC
CS CMD/DI
DAT/DO
CLK/SCLK
Interface driver
Memory core
All units in these Hitachi MultiMediaCards are clocked by an internal clock generator. The Interface driver
unit synchronizes the DAT and CMD signals from external CLK to the internal used clock signal. The card
is controlled by the three line MultiMediaCard interface containing the signals: CMD, CLK, DAT (refer to
Chapter “Interfaces”). For the identification of the MultiMediaCard in a stack of MultiMediaCards, a card
identification register (CID) and a relative card address register (RCA) is foreseen. An additional register
contains different types of operation parameters. This register is called card specific data register (CSD).
The communication using the MultiMediaCard lines to access either the memory field or the registers is
defined by the MultiMediaCard standard (refer to Chapter “Communication”). The card has its own power
on detection unit. No additional master reset signal is required to setup the card after power on. It is
protected against short circuit during insertion and removal while the MultiMediaCard system is powered
up (refer to Chapter “Power Supply”). No external programming voltage supply is required. The
programming voltage is generated on card.
These Hitachi MultiMediaCards support a second interface operation mode the SPI interface mode. The
SPI mode is activated if the CS signal is asserted (negative) during the reception of the reset command
(CMD0) (refer to Chapter “SPI Communication”).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HB28D032MM2 | MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte |
| HB28D064MM2 | MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte |
| HB28E016MM2 | MultiMediaCard 16 Mbyte/32 Mbyte/64 Mbyte/128 MByte |
| HB28C048A6 | FLASH ATA Card |
| HB28C048C6 | CompactFlash⑩ |
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