HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 548

• Manufacturer Part Number: HD6417712BPV
• Description: MPU 1.5/3.3V 0K PB-FREE 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Ethernetr

Specifications of HD6417712BPV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, FIFO, SCI, SIO
• Peripherals: DMA, POR, WDT
• Number Of I /o: 24
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 14 Timer Unit (TMU)
14.4.3
The TMU generates underflow interrupts for each channel. When the interrupt request flag and
interrupt enable bit are both set to 1, the interrupt is requested. Codes are set in the interrupt event
register (INTEVT2) for these interrupts and interrupt processing occurs according to the codes.
The relative priorities of channels can be changed using the interrupt controller (see section 4,
Exception Handling, and section 8, Interrupt Controller (INTC)). Table 14.1 lists TMU interrupt
sources.
Table 14.1 TMU Interrupt Sources
14.5
14.5.1
Synchronization processing is not performed for timer counting during register writes. When
writing to registers, always clear the appropriate start bits for the channel (STR2 to STR0) in
TSTR to halt timer counting.
14.5.2
Synchronization processing is performed for timer counting during register reads. When timer
counting and register read processing are performed simultaneously, the register value before
TCNT counting down (with synchronization processing) is read.
Rev. 1.00 Dec. 27, 2005 Page 504 of 932
REJ09B0269-0100
Channel
0
1
2
Interrupt Sources and Priorities
Usage Notes
Writing to Registers
Reading Registers
Interrupt Source
TUNI0
TUNI1
TUNI2
Description
Underflow interrupt 0
Underflow interrupt 1
Underflow interrupt 2
Priority
High
Low