DF2378BVFQ35WV Renesas Electronics America, DF2378BVFQ35WV Datasheet - Page 977

• Manufacturer Part Number: DF2378BVFQ35WV
• Description: IC H8S/2378 MCU FLASH 144-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2378BVFQ35WV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 35MHz
• Connectivity: I²C, IrDA, SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 97
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-QFP
• For Use With: EDK2378 - DEV EVAL KIT FOR H8S/2378
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

The difference between the erasing procedures in user program mode and user boot mode depends
on whether the MAT is switched or not as shown in figure 21.14.
MAT switching is enabled by writing a specific value to FMATS. However note that while the
MATs are being switched, the LSI is in an unstable state, e.g. access to a MAT is not allowed until
MAT switching is completed, and if an interrupt occurs, from which MAT the interrupt vector is
read is undetermined. Perform MAT switching in accordance with the description in section 21.6,
Switching between User MAT and User Boot MAT.
Except for MAT switching, the erasing procedure is the same as that in user program mode.
JSR FTDAR setting + 32
Figure 21.14 Procedure for Erasing User MAT in User Boot Mode
Select on-chip program
to be downloaded and
destination by FTDAR
and bus master operation
Set the FPEFEQ and
specify download
Set SCO to 1 and
execute download
Set FKEY to H'A5
FUBRA parameters
procedure program
Clear FKEY to 0
Initialization
Disable interrupts
other than CPU
Start erasing
DPFR = 0 ?
FPFR = 0 ?
1
Yes
Yes
Initialization error processing
Download error processing
No
No
User-boot-MAT
selection state
Section 21 Flash Memory (0.18-μm F-ZTAT Version)
Note: * The MAT must be switched by FMATS to perform
Rev.7.00 Mar. 18, 2009 page 909 of 1136
No
the erasing error processing in the user boot MAT.
JSR FTDAR setting + 16
Set FMATS to H'AA to
than H'AA to select user MAT
Set FEBS parameter
select user boot MAT
Set FMATS to value other
Set FKEY to H'A5
procedure program
Clear FKEY to 0
Programming
block erasing is
End erasing
completed?
FPFR = 0 ?
Required
1
Yes
Yes
Clear FKEY and erasing
No
error processing*
REJ09B0109-0700
switchover
switchover
MAT
MAT