HD64F3694FY Renesas Electronics America, HD64F3694FY Datasheet - Page 164

• Manufacturer Part Number: HD64F3694FY
• Description: IC H8 MCU FLASH 32K 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3694FY

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 29
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 10 Timer A
Legend: X: Don't care.
10.3.2
TCA is an 8-bit readable up-counter, which is incremented by internal clock input. The clock
source for input to this counter is selected by bits TMA3 to TMA0 in TMA. TCA values can be
read by the CPU in active mode, but cannot be read in subactive mode. When TCA overflows, the
IRRTA bit in interrupt request register 1 (IRR1) is set to 1. TCA is cleared by setting bits TMA3
and TMA2 in TMA to B’11. TCA is initialized to H'00.
Rev.5.00 Nov. 02, 2005 Page 134 of 418
REJ09B0028-0500
Bit
2
1
0
Bit Name
TMA2
TMA1
TMA0
Timer Counter A (TCA)
Initial
Value
0
0
0
R/W
R/W
R/W
R/W
Description
Internal Clock Select 2 to 0
These bits select the clock input to TCA when TMA3 = 0.
000: /8192
001: /4096
010: /2048
011: /512
100: /256
101: /128
110: /32
111: /8
These bits select the overflow period when TMA3 = 1
(when a 32.768 kHz crystal oscillator with is used as W).
000: 1s
001: 0.5 s
010: 0.25 s
011: 0.03125 s
1XX: Both PSW and TCA are reset