DF2506BR26DV Renesas Electronics America, DF2506BR26DV Datasheet - Page 404

• Manufacturer Part Number: DF2506BR26DV
• Description: IC H8S/2506 MCU FLASH 176-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2506BR26DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 11 8-Bit Timers (TMR)
Channel 2
• Timer counter_2 (TCNT_2)
• Time constant register A_2 (TCORA_2)
• Time constant register B_2 (TCORB_2)
• Timer control register_2 (TCR_2)
• Timer control/status register_2 (TCSR_2)
Channel 3
• Timer counter_3 (TCNT_3)
• Time constant register A_3 (TCORA_3)
• Time constant register B_3 (TCORB_3)
• Timer control register_3 (TCR_3)
• Timer control/status register_3 (TCSR_3)
11.3.1
Each TCNT is an 8-bit up-counter. TCNT_0 and TCNT_1 (or TCNT_2 and TCNT_3) comprise a
single 16-bit register, so they can be accessed together by word access.
This clock source is selected by the clock select bits, CKS2 to CKS0, in TCR. TCNT can be
cleared by an external reset input signal or compare-match signals A and B. The CCLR1 and
CCLR0 bits in TCR select the method of TCNT clearing.
When TCNT overflows from H'FF to H'00, the overflow flag (OVF) in TCSR is set to 1. The
initial value of TCNT is H'00.
11.3.2
TCORA is an 8-bit readable/writable register. TCORA_0 and TCORA_1 (or TCORA_2 and
TCORA_3) comprise a single 16-bit register, so they can be accessed together by word access.
TCORA is continually compared with the value in TCNT. When a match is detected, the
corresponding compare-match flag A (CMFA) in TCSR is set. Note, however, that comparison is
disabled during the T
The timer output from the TMO pin can be freely controlled by the compare-match signal A and
the settings of the output select bits, OS1 and OS0, in TCSR.
The initial value of TCORA is H'FF.
Rev. 6.00 Sep. 24, 2009 Page 356 of 928
REJ09B0099-0600
Timer Counter (TCNT)
Time Constant Register A (TCORA)
2
state of a TCORA write cycle.