HD6417708SF60V Renesas Electronics America, HD6417708SF60V Datasheet - Page 37

• Manufacturer Part Number: HD6417708SF60V
• Description: IC SUPERH MPU ROMLESS 208LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708SF60V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

2.1.3
System registers can be accessed by the LDS and STS instructions. When an exception occurs, the
contents of the program counter (PC) are saved in the saved program counter (SPC). The SPC
contents are restored to the PC by the RTE instruction used at the end of the exception handling.
There are four system registers, as follows.
The system register configuration is shown in figure 2.4.
2.1.4
Control registers can be accessed in privileged mode using the LDC and STC instructions. The
GBR register can also be accessed in user mode. There are five control registers, as follows:
Multiply and accumulate high register (MACH)
Multiply and accumulate low register (MACL)
Procedure register (PR)
Program counter (PC)
Status register (SR)
Saved status register (SSR)
Saved program counter (SPC)
Global base register (GBR)
Vector base register (VBR)
31
31
31
System Registers
Control Registers
MACH
MACL
PR
PC
0
0
0
Figure 2.4 System Registers
System Registers
Multiply and Accumulate High and Low Registers
(MACH/L)
Store the results of multiply-and-accumulate operations.
Its contents are undefined after a reset.
Procedure Register (PR)
Stores the return address for exiting a subroutine
procedure.
Its contents are undefined after a reset.
Program Counter (PC)
Indicates the address four addresses (two instructions)
ahead of the currently executing instruction. Initialized
to H'A0000000 by a reset.
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