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Section 6 ROM
Rev. 6.00 Sep 12, 2006 page 114 of 526
REJ09B0326-0600
6.4.5 Pin
Configuration
The flash memory is controlled by means of the pins shown in table 6.6.
Table 6.6
Flash Memory Pins
Pin Name
Abbreviation
Input/Output
Function
Programming power
FV
PP
Power supply
Apply 12.0 V
Mode pin
TEST
Input
Sets H8/3644F operating mode
Transmit data
TXD
Output
SCI3 transmit data output
Receive data
RXD
Input
SCI3 receive data input
The transmit data pin and receive data pin are used in boot mode.
6.4.6 Register
Configuration
The registers used to control the on-chip flash memory are shown in table 6.7.
Table 6.7
Flash Memory Registers
Register Name
Abbreviation
R/W
Initial Value
Address
Flash memory control register
FLMCR
R/W
H'00
H'FF80
Erase block register 1
EBR1
R/W
H'F0
H'FF82
Erase block register 2
EBR2
R/W
H'00
H'FF83
The FLMCR, EBR1, and EBR2 registers are valid only when programming and erasing flash
memory, and can only be accessed when 12 V is applied to the FV
PP
pin. When 12 V is not
applied to the FV
PP
pin, addresses H'FF80 to H'FF83 cannot be modified and are always read as
H'FF.
Summary of Contents for F-ZTAT H8/3642A Series
Page 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Page 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Page 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...