HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 565

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

SH7720 Group, SH7721 Group
14.2.2
TCR are 16-bit readable/writable registers that control the timer counters (TCNT) and interrupts.
TCR control the issuance of interrupts when the flag indicating timer counter (TCNT) underflow
has been set to 1, and also carry out counter clock selection.
TCR are initialized to H'0000 at a power-on reset or manual reset. They are retained in standby or
sleep mode.
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010
Bit
15 to 9 —
8
7, 6
5
Bit Name
UNF
—
UNIE
Timer Control Registers (TCR)
Initial
Value
All 0
0
All 0
0
R/W
R
R/(W)* Underflow Flag
R
R/W
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Status flag that indicates occurrence of a TCNT
underflow.
0: TCNT has not underflowed
[Clearing condition]
0 is written to UNF
1: TCNT has underflowed
[Setting condition]
TCNT underflows
Reserved
These bits are always read as 0. The write value should
always be 0.
Underflow Interrupt Control
Controls enabling of interrupt generation when the status
flag (UNF) indicating TCNT underflow has been set to 1.
0: Interrupt due to UNF (TUNI) is disabled
1: Interrupt due to UNF (TUNI) is enabled
Section 14 Timer Unit (TMU)
Page 505 of 1414