HD64F2149YV datasheet(750/1075 Pages) RENESAS

Part #	HD64F2149YV

Description	Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

PDF	1075 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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Section 22 ROM

Rev. 3.00 Jan 18, 2006 page 722 of 1044

REJ09B0280-0300

Table 22.13 Programmer Mode Commands

Number

1st Cycle

2nd Cycle

Command Name

of Cycles

Mode

Address

Data

Mode

Address

Data

Memory read mode

1 + n

Write

H'00

Read

Dout

Auto-program mode

129

Write

H'40

Write

Din

Auto-erase mode

Write

H'20

Write

H'20

Status read mode

Write

H'71

Write

H'71

Notes: 1. In auto-program mode. 129 cycles are required for command writing by a simultaneous

128-byte write.

2. In memory read mode, the number of cycles depends on the number of address write

cycles (n).

22.10.4

Memory Read Mode

• After the end of an auto-program, auto-erase, or status read operation, the command wait state

is entered. To read memory contents, a transition must be made to memory read mode by

means of a command write before the read is executed.

• Command writes can be performed in memory read mode, just as in the command wait state.

• Once memory read mode has been entered, consecutive reads can be performed.

• After power-on, memory read mode is entered.

HD64F2149YV Datasheet(PDF) 750 Page - Renesas Technology Corp

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