KLM4G1EEHM-B101 데이터 시트보기 (PDF) - Samsung

부품명

상세내역

일치하는 목록

KLM4G1EEHM-B101

SAMSUNG moviNAND

Samsung 

KLMxGxxEHx

datasheet

Draft Rev. 0.0

moviNAND

4.0 FEATURES OF moviNAND

This moviNAND follows MMC4.3 standards. KLMxGxxEHx moviNAND series are housed in 153 ball & 169 ball BGA package and JEDEC standard pack-

age size.

4.1 Vendor specific command

CMD62 is a Vendor command which Samsung provides for customer to use moviNAND more usefully. One is for Boot partition setting and the other is

Smart report.

CMD

INDEX

CMD62

Type

ac

Argument

[31:0] Argument

Resp

R1b

Abbreviation

VENDOR_CMD

Command Description

Vendor command can provide two kinds of functions. One

is Smart Report, Second is Boot partition setting.

4.1.1 Boot operation mode

In boot operation mode, the master (MultiMediaCard host) can read boot data from the slave (MMC device) by keeping CMD line low after power-on, or

sending CMD0 with argument 0xFFFFFFFA (optional for slave), before issuing CMD1. The data can be read from either bootarea or user area depending

on register setting. Detail description is refer to MMC 4.3 standard

4.1.2 Boot partition

Samsung moviNAND provide boot partition feature which users can set the boot partition size

There are two partition regions. The minimum size of each boot partition is 0KB. Boot partition size is calculated as follows: [227:226]

Maximum boot partition size = 128K byte x BOOT_SIZE_MULT

BOOT_SIZE_MULT: the value in Extended CSD register bytes [227:226]

The boot partitions are separated from the user area as shown in below figure.

0x00000000

BOOT area

partition 1

0x00000000

USER area

Maximum boot

partition size

0x00000000

BOOT area

partition 2

Maximum boot

partition size

Figure 4. Memory Partition

Slave has boot configuration in Extended CSD register byte [179]. The master can choose the configuration by setting the register using CMD6 (switch).

Slave also can be configured to boot from the user area by setting the BOOT_PARTITION_ ENABLE bits in the EXT_CSD register, byte [179] to 111b. If

host boot from the user area, it will take longer time than boot partition area.

- 10 -

Share Link: