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參數(shù)資料

型號(hào)：	MC56U512HACA
廠(chǎng)商：	SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述：	MultiMediaCard Specification
中文描述：	多媒體卡規(guī)格
文件頁(yè)數(shù)：	28/66頁(yè)
文件大小：	1422K
代理商：	MC56U512HACA

MultiMediaCard

WP_GRP_SIZE

The size of a write protection group. The content of this register is a binary coded value defining the

number of erase group. This parameter's value is 8, which means that a write protect group size is 128

kByte.

WP_GRP_ENABLE

The value is set to ‘1’, meaning group write protection is enabled.

DEFAULT_ECC

Set by the card manufacturer and defines the ECC code, which is recommended to use (e.g. the device

is tested for). The value is set to ‘0’, indicating that no designated ECC is recommended.

R2W_FACTOR

Defines the typical block program time as a multiple of the read access time. The following table defines

the field format.

R2W_FACTOR

This parameter value is 4 for these MultiMediaCards.

WRITE_BLK_LEN

Block length for write operation. See READ_BL_LEN for field coding.

WRITE_BLK_PARTIAL

WRITE_BLK_PARTIAL defines whether partial block sizes can be used in block wrtie commands.

WRITE_BLK_PARTIAL = 0 means that only the block size defined by WRITE_BLOCK_LEN can be used

for block-orinted data transfer. WRITE_BLK_PARTIAL = 1 means that smaller blocks can be used as

well. The minimum block size will be equal to minimum addressable unit (one byte). These

MultiMediaCards support partial block read. The parameter WRITE_BLK_PARTIAL is permanently

assigned to the value “0”.

FILE_FORMAT_GRP

Indicated the selected group of file formats. This fiels is read-only for ROM. The usage of this fiels is

Multiples of read access time

2 (Write half as fast as read)

128

相關(guān)PDF資料	PDF描述
MC56U512NACA	MultiMediaCard Specification
MC12U016HACA	Shielded Paired Cable; Number of Conductors:2; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Shielding Material:Aluminum Foil/Polyester Tape; Number of Pairs:1 RoHS Compliant: Yes
MC12U016NACA	Shielded Paired Cable; Number of Conductors:2; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:1; Leaded Process Compatible:Yes RoHS Compliant: Yes
MC12U032HACA	CABLE, 9505, 5PAIR, 30.5M; Cores, No. of:10; Conductor make-up:7/32AWG; Area, conductor CSA:0.2mm2; Diameter, External:7.34mm; Material, secondary insulation:PVC; Length, Reel (Imperial):100ft; Colour, secondary insulation:Chrome; RoHS Compliant: Yes
MC12U032NACA	Shielded Paired Cable; Number of Conductors:10; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:5; Impedance:75ohm; Leaded Process Compatible:Yes; Voltage Nom.:300V RoHS Compliant: Yes

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