M38039FFHFP#U0 Renesas Electronics America, M38039FFHFP#U0 Datasheet - Page 71

• Manufacturer Part Number: M38039FFHFP#U0
• Description: IC 740 MCU FLASH 60K 64QFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38039FFHFP#U0

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 16.8MHz
• Connectivity: SIO, UART/USART
• Peripherals: PWM, WDT
• Number Of I /o: 56
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

3803 Group (Spec.H)
Rev.3.11
REJ03B0017-0311
Boot Mode
The control program for CPU rewrite mode must be written into
the User ROM or Boot ROM area in parallel I/O mode
beforehand. (If the control program is written into the Boot ROM
area, the standard serial I/O mode becomes unusable.)
See Figure.64 for details about the Boot ROM area.
N o r m a l m i c r o c o m p u t e r m o d e i s e n t e r e d w h e n t h e
microcomputer is reset with pulling CNV
the CPU starts operating using the control program in the User
ROM area.
When the microcomputer is reset and the CNV
pulling the P4
operating (start address of program is stored into addresses
FFFC
ROM area. This mode is called the “Boot mode”. Also, User
ROM area can be rewritten using the control program in the Boot
ROM area.
Block Address
Block addresses refer to the maximum address of each block.
These addresses are used in the block erase command.
Fig 64. Block diagram of built-in flash memory
16
RAM
and FFFD
Apr 5, 2006
FFFF
0FE0
0FFF
083F
5
0000
0040
1000
/TxD
16
16
16
16
16
16
16
16
1
) using the control program in the Boot
Internal flash memory area
pin and CNV
Internal RAM area
(60K bytes)
(2K bytes)
SFR area
SFR area
Page 69 of 113
SS
pin high, the CPU starts
SS
pin low. In this case,
SS
pin high after
C000
FFFF
E000
1000
1800
2000
8000
16
16
16
16
16
16
16
CPU Rewrite Mode
In CPU rewrite mode, the internal flash memory can be operated
on (read, program, or erase) under control of the Central
Processing Unit (CPU).
In CPU rewrite mode, only the User ROM area shown in
Figure.64 can be rewritten; the Boot ROM area cannot be
rewritten. Make sure the program and block erase commands are
issued for only the User ROM area and each block area.
The control program for CPU rewrite mode can be stored in
either User ROM or Boot ROM area. In the CPU rewrite mode,
because the flash memory cannot be read from the CPU, the
rewrite control program must be transferred to internal RAM
area before it can be executed.
Block 3: 24K bytes
Block 2: 16K bytes
Block 0: 8 K bytes
Block 1: 8 K bytes
User ROM area
Data block B:
Data block A:
2K bytes
2K bytes
Notes1 : The boot ROM area can be rewritten
2 : To specify a block, use the maximum
in a parallel I/O mode. (Access to
except boot ROM area is disabled.)
address in the block.
FFFF
F000
16
16
Boot ROM area
4K bytes