HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 375
HD64F3029XBL25V
Manufacturer Part Number
HD64F3029XBL25V
Description
MCU 5V 512K,PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3029X25.pdf
(1012 pages)
Specifications of HD64F3029XBL25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 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
-
- Current page: 375 of 1012
- Download datasheet (5Mb)
Rev. 2.0, 06/04, page 346 of 980
Free-running and periodic counter operation
A reset leaves the counters (16TCNTs) in 16-bit timer channels 0 to 2 all set as free-running
counters. A free-running counter starts counting up when the corresponding bit in TSTR is set
to 1. When the count overflows from H'FFFF to H'0000, the OVF flag is set to 1 in TISRC.
After the overflow, the counter continues counting up from H'0000. Figure 9.13 illustrates
free-running counting.
When a channel is set to have its counter cleared by compare match, in that channel 16TCNT
operates as a periodic counter. Select the output compare function of GRA or GRB, set bit
CCLR1 or CCLR0 in 16TCR to have the counter cleared by compare match, and set the count
period in GRA or GRB. After these settings, the counter starts counting up as a periodic
counter when the corresponding bit is set to 1 in TSTR. When the count matches GRA or
GRB, the IMFA or IMFB flag is set to 1 in TISRA/TISRB and the counter is cleared to
H'0000. If the corresponding IMIEA or IMIEB bit is set to 1 in TISRA/TISRB, a CPU
interrupt is requested at this time. After the compare match, 16TCNT continues counting up
from H'0000. Figure 9.14 illustrates periodic counting.
H'FFFF
H'0000
STR0 to
STR2 bit
OVF
GR
H'0000
STR bit
IMF
16TCNT value
16TCNT value
Figure 9.13 Free-Running Counter Operation
Figure 9.14 Periodic Counter Operation
Counter cleared by general
register compare match
Time
Time
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