HD6417727F160V Renesas Electronics America, HD6417727F160V Datasheet - Page 501

• Manufacturer Part Number: HD6417727F160V
• Description: MPU 3V 16K PB-FREE 240-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417727F160V

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 160MHz
• Connectivity: FIFO, SCI, SIO, SmartCard, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 104
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.7 V ~ 2.05 V
• Data Converters: A/D 6x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 240-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

15.1
This LSI has an on-chip 32-bit timer unit (TMU) comprised of three 32-bit timer channels
(channels 0 to 2).
15.1.1
The TMU has the following features:
• Auto-reload 32-bit down-counters for each channel
• Auto-reload 32-bit constant registers and 32-bit down counters that can be read or written to at
• Interrupt request generation at the counter underflow:
• Selection of six counter input clocks for each channel:
• All channels can operate when the SH7727 is in standby mode:
• Synchronized read:
• The maximum 2 MHz operating frequency for the 32-bit counter in each channel:
any time for each channel
Interrupt requests can be generated when the 32-bit down counter underflows (H'00000000 →
H'FFFFFFFF) in each channel.
On-chip RTC output clock (16 kHz), Pφ/4, Pφ/16, Pφ/64, and Pφ/256
When the RTC output clock is used as the counter input clock, the count operation is normally
performed in standby mode.
TCNT is a 32-bit register that is successively modified. Since the internal bus for the SH7727
on-chip supporting modules is 16 bits wide, a time lag can occur between the time when the
upper 16 bits and lower 16 bits are read. To correct the discrepancy in the counter read value
caused by this time lag, a synchronization circuit is built in the TCNT so that the entire 32-bit
data in the TCNT can be read at once.
Operate the SH7727 so that the clock input to each channel timer counter does not exceed the
maximum operating frequency, by dividing the external clock and peripheral clock (Pφ) with
the prescaler.
Overview
Features
Section 15 Timer (TMU)
Rev.6.00 Mar. 27, 2009 Page 443 of 1036
Section 15 Timer (TMU)
REJ09B0254-0600