DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 369

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 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: Lead free / RoHS Compliant
• Eeprom Size: -

10.3.2
The registers other than the timer counters (TCNTS), general registers A and B (GRAs and
GRBs), and buffer registers A and B (BRAs and BRBs) are 8-bit registers. These registers are
linked to the CPU by an internal 8-bit data bus.
Figures 10.12 and 10.13 show examples of byte read and write access to a TCR.
If a word-size data transfer instruction is executed, two byte transfers are performed.
CPU
CPU
On-chip data bus
On-chip data bus
8-Bit Accessible Registers
Figure 10.11 Access to Timer Counter (CPU Reads TCNT, Lower Byte)
H
L
H
L
Figure 10.12 Access to Timer Counter (CPU Writes to TCR)
Bus interface
Bus interface
Section 10 16-Bit Integrated Timer Unit (ITU)
Rev. 3.00 Mar 21, 2006 page 339 of 814
TCNTH
TCR
TCNTL
REJ09B0302-0300
H
L
H
L
Module
data bus
Module
data bus