HD6417020SVX12I Renesas Electronics America, HD6417020SVX12I Datasheet - Page 257
HD6417020SVX12I
Manufacturer Part Number
HD6417020SVX12I
Description
IC SUPERH MPU ROMLESS 100TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
Specifications of HD6417020SVX12I
Core Processor
SH-1
Core Size
32-Bit
Speed
12.5MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
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10.2.11 Timer Status Register (TSR)
The timer status register (TSR) is an eight-bit read/write register containing flags that indicate
timer counter (TCNT) overflow/underflow and general register (GRA/GRB) compare match or
input capture. These flags are interrupt sources. If the interrupt is enabled by the corresponding bit
in the timer interrupt enable register (TIER), an interrupt is requested of the CPU. TSR is
initialized by a reset or standby mode to H'F8 or H'78. Each ITU channel has one TSR (table
10.9).
Table 10.9 Timer Status Register (TSR)
Channel
0
1
2
3
4
Notes: 1. Undefined
• Bits 7–3 (reserved): Bit 7 is read as undefined. Bits 6–3 are always read as 1. The write value
• Bit 2 (overflow flag (OVF)): OVF indicates a TCNT overflow/underflow has occurred.
Bit 2: OVF
0
1
Note: A TCNT underflow occurs when the TCNT up/down counter is functioning. It may occur in
to bit 7 should be 0 or 1. The write value to bits 6–3 should always be 1.
Initial value:
the following cases: (1) When channel 2 is set in the phase counting mode (MDF bit of
TMDR is 1), or (2) When channel 3 and 4 are set to the complementary PWM mode (CMD1
bit of TFCR is 1 and CMD0 bit is 0).
2. Write 0 to clear the flag.
Bit name:
R/W:
Bit:
Abbreviation
TSR0
TSR1
TSR2
TSR3
TSR4
—
—
*
7
1
Description
Clearing condition: Read OVF when OVF = 1, then write 0 in OVF
(initial value)
Setting condition: TCNT overflowed from H'FFFF–H'0000 or
underflowed from H'0000–H'FFFF.
—
—
6
1
Function
The TSR indicates input capture, compare match and
overflow status.
—
—
5
1
—
—
4
1
—
—
3
1
R/(W)*
OVF
2
0
2
R/(W)*
IMFB
RENESAS 239
1
0
2
R/(W)*
IMFA
0
0
2
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