HD64F3694FPJV Renesas Electronics America, HD64F3694FPJV Datasheet - Page 165
![MCU 3/5V 32K J-TEMP PB-FREE 64-L](/photos/28/61/286107/64-lqfp__plqp0064kc-a_sml.jpg)
HD64F3694FPJV
Manufacturer Part Number
HD64F3694FPJV
Description
MCU 3/5V 32K J-TEMP PB-FREE 64-L
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3694GFYV.pdf
(452 pages)
Specifications of HD64F3694FPJV
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
64-LQFP
For Use With
R0K436079S000BE - KIT DEV FOR H8/36079 W/COMPILER
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- Current page: 165 of 452
- Download datasheet (3Mb)
10.4
10.4.1
When bit TMA3 in TMA is cleared to 0, timer A functions as an 8-bit interval timer.
Upon reset, TCA is cleared to H'00 and bit TMA3 is cleared to 0, so up-counting of timer A
resume immediately as an interval timer. The clock input to timer A is selected by bits TMA2 to
TMA0 in TMA; any of eight internal clock signals output by prescaler S can be selected.
After the count value in TCA reaches H'FF, the next clock signal input causes timer A to
overflow, setting bit IRRTA to 1 in interrupt Flag Register 1 (IRR1). If IENTA = 1 in interrupt
enable register 1 (IENR1), a CPU interrupt is requested. At overflow, TCA returns to H'00 and
starts counting up again. In this mode timer A functions as an interval timer that generates an
overflow output at intervals of 256 input clock pulses.
10.4.2
When bit TMA3 in TMA is set to 1, timer A functions as a clock-timer base by counting clock
signals output by prescaler W. When a clock signal is input after the TCA counter value has
become H'FF, timer A overflows and IRRTA in IRR1 is set to 1. At that time, an interrupt request
is generated to the CPU if IENTA in the interrupt enable register 1 (IENR1) is 1. The overflow
period of timer A is set by bits TMA1 and TMA0 in TMA. A choice of four periods is available.
In clock time base operation (TMA3 = 1), setting bit TMA2 to 1 clears both TCA and prescaler W
to H'00.
10.4.3
Setting bit TMOW in port mode register 1 (PMR1) to 1 causes a clock signal to be output at pin
TMOW. Eight different clock output signals can be selected by means of bits TMA7 to TMA5 in
TMA. The system clock divided by 32, 16, 8, or 4 can be output in active mode and sleep mode. A
32.768 kHz signal divided by 32, 16, 8, or 4 can be output in active mode, sleep mode, and
subactive mode.
10.5
When the clock time base function is selected as the internal clock of TCA in active mode or sleep
mode, the internal clock is not synchronous with the system clock, so it is synchronized by a
synchronizing circuit. This may result in a maximum error of 1/ (s) in the count cycle.
Operation
Interval Timer Operation
Clock Time Base Operation
Clock Output
Usage Note
Rev.5.00 Nov. 02, 2005 Page 135 of 418
Section 10 Timer A
REJ09B0028-0500
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