HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 128

• Manufacturer Part Number: HD64F3684FP
• Description: IC H8 MCU FLASH 32K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3684FP

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 7 ROM
7.2.4
FLPWCR enables or disables a transition to the flash memory power-down mode when the LSI
switches to subactive mode. There are two modes: mode in which operation of the power supply
circuit of flash memory is partly halted in power-down mode and flash memory can be read, and
mode in which even if a transition is made to subactive mode, operation of the power supply
circuit of flash memory is retained and flash memory can be read.
7.2.5
Bit 7 (FLSHE) in FENR enables or disables the CPU access to the flash memory control registers,
FLMCR1, FLMCR2, EBR1, and FLPWCR.
Rev.5.00 Nov. 02, 2005 Page 94 of 500
REJ09B0027-0500
Bit
7
6 to 0
Bit
7
6 to 0
Bit Name
PDWND
Bit Name
FLSHE
Flash Memory Power Control Register (FLPWCR)
Flash Memory Enable Register (FENR)
Initial
Value
0
All 0
Initial
Value
0
All 0
R/W
R/W
R/W
R/W
Description
Power-Down Disable
When this bit is 0 and a transition is made to subactive
mode, the flash memory enters the power-down mode.
When this bit is 1, the flash memory remains in the
normal mode even after a transition is made to subactive
mode.
Reserved
These bits are always read as 0.
Description
Flash Memory Control Register Enable
Flash memory control registers can be accessed when
this bit is set to 1. Flash memory control registers cannot
be accessed when this bit is set to 0.
Reserved
These bits are always read as 0.