hb288016mm1 Renesas Electronics Corporation., hb288016mm1 Datasheet - Page 3

• Manufacturer Part Number: hb288016mm1
• Description: Multimediacard 16 Mbyte
• Manufacturer: Renesas Electronics Corporation.

Block Diagram
All units in the HB288016MM1 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 HB288016MM1 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. HB288016MM1 supports 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”).
Generator
V
PP
Flash control
CS CMD/DI
Internal clock
1
CSD[127:0]
RCA[15:0]
OCR[31:0]
CID[127:0]
2
Memory core
3
V
Interface driver
Core control
4
CC
CLK/SCLK
Interface
5
6
DAT/DO
7
HB288016MM1
3