D17760BP200AD Renesas Electronics America, D17760BP200AD Datasheet - Page 124
D17760BP200AD
Manufacturer Part Number
D17760BP200AD
Description
IC SUPERH MPU ROMLESS 256-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417760BP200ADV.pdf
(1418 pages)
Specifications of D17760BP200AD
Core Processor
SH-4
Core Size
32-Bit
Speed
200MHz
Connectivity
Audio Codec, CAN, EBI/EMI, FIFO, I²C, MFI, MMC, SCI, Serial Sound, SIM, SPI, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
69
Program Memory Type
ROMless
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
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2.2
2.2.1
Processor Modes: This LSI has two processor modes, user mode and privileged mode. This LSI
normally operates in user mode, and switches to privileged mode when an exception occurs or an
interrupt is accepted. There are four kinds of registers—general registers, system registers, control
registers, and floating-point registers—and the registers that can be accessed differ in the two
processor modes.
General Registers: There are 16 general registers, designated R0 to R15. General registers R0 to
R7 are banked registers which are switched by a processor mode change.
In privileged mode, the register bank bit (RB) in the status register (SR) defines which banked
register set is accessed as general registers, and which set is accessed only through the load control
register (LDC) and store control register (STC) instructions.
When the RB bit is 1 (that is, when bank 1 is selected), the 16 registers comprising bank 1 general
registers R0_BANK1 to R7_BANK1 and non-banked general registers R8 to R15 can be accessed
as general registers R0 to R15. In this case, the eight registers comprising bank 0 general registers
R0_BANK0 to R7_BANK0 are accessed by the LDC/STC instructions. When the RB bit is 0 (that
is, when bank 0 is selected), the 16 registers comprising bank 0 general registers R0_BANK0 to
R7_BANK0 and non-banked general registers R8 to R15 can be accessed as general registers R0
to R15. In this case, the eight registers comprising bank 1 general registers R0_BANK1 to
R7_BANK1 are accessed by the LDC/STC instructions.
In user mode, the 16 registers comprising bank 0 general registers R0_BANK0 to R7_BANK0 and
non-banked general registers R8 to R15 can be accessed as general registers R0 to R15. The eight
registers comprising bank 1 general registers R0_BANK1 to R7_BANK1 cannot be accessed.
Control Registers: Control registers comprise the global base register (GBR) and status register
(SR), which can be accessed in both processor modes, and the saved status register (SSR), saved
program counter (SPC), vector base register (VBR), saved general register 15 (SGR), and debug
base register (DBR), which can only be accessed in privileged mode. Some bits of the status
register (such as the RB bit) can only be accessed in privileged mode.
System Registers: System registers comprise the multiply-and-accumulate registers
(MACH/MACL), the procedure register (PR), the program counter (PC), the floating-point
status/control register (FPSCR), and the floating-point communication register (FPUL). Access to
these registers does not depend on the processor mode.
Rev. 2.00 Feb. 12, 2010 Page 40 of 1330
REJ09B0554-0200
Register Descriptions
Privileged Mode and Banks
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