HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 627

• Manufacturer Part Number: HD64F3048VTF8
• Description: IC H8 MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048VTF8

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F3048VX8

Notes on Use of Boot Mode
1. When the H8/3048F comes out of reset in boot mode, it measures the low period of the input at
2. In boot mode, if any data has been programmed into the flash memory (if all data are not
3. Interrupts cannot be used while the flash memory is being programmed or erased.
4. The RXD
5. Before branching to the user program (at address H'F300 in the RAM area), the H8/3048F
6. Transition to boot mode are shown in figure 19.7, User Program Mode Operation (Example).
the SCI1’s RXD
100 states for the H8/3048F to get ready to measure the low period of the RXD
H'FF), all flash memory blocks are erased. Boot mode is for use when user program mode is
unavailable, e.g. the first time on-board programming is performed, or if the update program
activated in user program mode is accidentally erased.
terminates transmit and receive operations by the on-chip SCI (channel 1) (by clearing the RE
and TE bits in serial control register (SCR) to 0 in channel 1), but the auto-aligned bit rate
remains set in bit rate register BRR1. The transmit data pin (TXD
(in port 9, the P9
register are set to 1).
When the branch to the user program occurs, the contents of general registers in the CPU are
undetermined. After the branch, the user program should begin by initializing general registers,
especially the stack pointer (SP), which is used implicitly in subroutine calls and at other
times. The stack pointer must be set to provide a stack area for use by the user program. The
other on-chip registers do not have specific initialization requirements.
This is possible after applying 12 V to pins MD
reset is erased (startup with Low
computer internally to maintain boot mode. Boot mode can be erased if the 12 V applied to the
MD
a. When transferring from boot mode to regular mode (V
b. While in boot mode, if the 12 V applied to the MD
c. When transferring to boot mode (reset erase timing) or during boot mode operation,
transfer the erase must be carried out by the reset input personal computer internal boot
mode RES pin. After V
flash memory read setup (t
from the RES pin does not occur, the personal computer internal boot mode status will be
maintained and boot mode will continue. In boot mode, if watchdog timer reset occur, the
personal computer internal boot mode is not erased, and despite mode pin status the
internal boot program restarts.
program voltage V
2
pin and the V
1
and TXD
1
1
DDR bit in port 9 data direction register P9DDR and P9
pin. The reset should end with RXD
PP
1
pin is erased, then reset is erased *
lines should be pulled up on-board.
PP
Section 19 Flash Memory (H8/3048F: Dual Power Supply (V
should be within the range 12 V to 0.6 V. If this range is exceeded,
PP
interrupt, erase reset. The time needed until reset vector lead is
FRS
) *
2
.
High) timing *
2
and V
1
, mode pin status latches the personal
Rev. 7.00 Sep 21, 2005 page 601 of 878
1
2
PP
1
high. After the reset ends, it takes about
pin is erased, as long as reset input
. However, please note the following.
and restarting. In this case, H8/3048F
PP
12 V, MD
1
) is in the high output state
2
1
DR bit in port 9 data
12 V), before
REJ09B0259-0700
1
input.
PP
= 12 V))