HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 375

• 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

10.3
10.3.1
The timer counters (TCNTs), general registers A and B (GRAs and GRBs), and buffer registers A
and B (BRAs and BRBs) are 16-bit registers, and are linked to the CPU by an internal 16-bit data
bus. These registers can be written or read a word at a time, or a byte at a time.
Figures 10.6 and 10.7 show examples of word access to a timer counter (TCNT). Figures 10.8 to
10.11 show examples of byte access to TCNTH and TCNTL.
CPU
CPU
On-chip data bus
On-chip data bus
CPU Interface
16-Bit Accessible Registers
H
L
H
L
Figure 10.6 Access to Timer Counter (CPU Writes to TCNT, Word)
Figure 10.7 Access to Timer Counter (CPU Reads TCNT, Word)
Bus interface
Bus interface
Section 10 16-Bit Integrated Timer Unit (ITU)
Rev. 7.00 Sep 21, 2005 page 349 of 878
TCNTH
TCNTH
TCNTL
TCNTL
REJ09B0259-0700
H
L
H
L
Module
data bus
Module
data bus