D6417729RHF200BV Renesas Electronics America, D6417729RHF200BV Datasheet - Page 171

• Manufacturer Part Number: D6417729RHF200BV
• Description: IC SUPER H MPU ROMLESS 208QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of D6417729RHF200BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, FIFO, IrDA, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 96
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.85 V ~ 2.15 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-QFP Exposed Pad, 208-eQFP, 208-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

4.1
4.1.1
Exception handling is separate from normal program processing, and is performed by a routine
separate from the normal program. In response to an exception handling request due to abnormal
termination of the executing instruction, control is passed to a user-written exception handler.
However, in response to an interrupt request, normal program execution continues until the end of
the executing instruction. Here, all exceptions other than resets and interrupts will be called
general exceptions. There are thus three types of exceptions: resets, general exceptions, and
interrupts.
4.1.2
Table 4.1 lists the registers used for exception handling. A register with an undefined initial value
should be initialized by software.
Table 4.1
Register
TRAPA exception register TRA
Exception event register
Interrupt event register
Interrupt event register2
Notes: 1. H'000 is set in a power-on reset, and H'020 in a manual reset.
4.2
4.2.1
In exception handling, the contents of the program counter (PC) and status register (SR) are saved
in the saved program counter (SPC) and saved status register (SSR), respectively, and execution of
the exception handler is invoked from a vector address. The return from exception handler (RTE)
instruction is issued by the exception handler routine on completion of the routine, restoring the
2. When address translation by the MMU does not apply, the address in parentheses
Overview
Features
Register Configuration
Exception Handling Function
Exception Handling Flow
should be used.
Register Configuration
Section 4 Exception Handling
Abbr.
EXPEVT R/W
INTEVT
INTEVT2 R
R/W
R/W
R/W
Size
Longword
Longword
Longword
Longword
Initial Value
Undefined
Power-on reset: H'000
Manual reset: H'020 *
Undefined
Undefined
Rev. 5.0, 09/03, page 123 of 806
1
H'FFFFFFD0
Address
H'FFFFFFD4
H'FFFFFFD8
H'04000000
(H'A4000000) *
2