HD64F7047FW40V Renesas Electronics America, HD64F7047FW40V Datasheet - Page 237

MCU 5V 256K I-TEMP,PB-FREE 100-Q

HD64F7047FW40V

Manufacturer Part Number
HD64F7047FW40V
Description
MCU 5V 256K I-TEMP,PB-FREE 100-Q
Manufacturer
Renesas Electronics America
Series
SuperH® SH7047r
Datasheet

Specifications of HD64F7047FW40V

Core Processor
SH-2
Core Size
32-Bit
Speed
40MHz
Connectivity
CAN, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
53
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
12K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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2. Free-Running Count Operation and Periodic Count Operation
Immediately after a reset, the MTU’s TCNT counters are all designated as free-running
counters. When the relevant bit in TSTR is set to 1 the corresponding TCNT counter starts up-
count operation as a free-running counter. When TCNT overflows (from H'FFFF to H'0000),
the TCFV bit in TSR is set to 1. If the value of the corresponding TCIEV bit in TIER is 1 at
this point, the MTU requests an interrupt. After overflow, TCNT starts counting up again from
H'0000.
Figure 10.4 illustrates free-running counter operation.
When compare match is selected as the TCNT clearing source, the TCNT counter for the
relevant channel performs periodic count operation. The TGR register for setting the period is
designated as an output compare register, and counter clearing by compare match is selected
by means of bits CCLR0 to CCLR2 in TCR. After the settings have been made, TCNT starts
up-count operation as a periodic counter when the corresponding bit in TSTR is set to 1. When
the count value matches the value in TGR, the TGF bit in TSR is set to 1 and TCNT is cleared
to H'0000.
If the value of the corresponding TGIE bit in TIER is 1 at this point, the TPU requests an
interrupt. After a compare match, TCNT starts counting up again from H'0000.
Figure 10.5 illustrates periodic counter operation.
H'FFFF
H'0000
CST bit
TCFV
TCNT value
Figure 10.4 Free-Running Counter Operation
Rev. 2.00, 09/04, page 195 of 720
Time

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