R8A77850BDBGV#RD0Z Renesas Electronics America, R8A77850BDBGV#RD0Z Datasheet - Page 187

• Manufacturer Part Number: R8A77850BDBGV#RD0Z
• Description: IC SUPERH MPU ROMLESS 436BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850BDBGV#RD0Z

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 600MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 108
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1 V ~ 1.2 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 436-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

7.2.3
TTB is used to store the base address of the currently used page table, and so on. The contents of
TTB are not changed unless a software directive is issued. This register can be used freely by
software.
Bit
8
7
6
5
4
3
2
1
0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Translation Table Base Register (TTB)
Bit Name
V
SZ1
PR1
PR0
SZ0
C
D
SH
WT
R/W
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
31
15
R/W R/W R/W R/W
30
14
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
Initial
Value
29
13
28
12
27
11
R/W
R/W
26
10
Description
Page Management Information
The meaning of each bit is same as that of
corresponding bit in Common TLB (UTLB).
For details, see section 7.3, TLB Functions (TLB
Compatible Mode; MMUCR.ME = 0) and section 7.4,
TLB Functions (TLB Extended Mode; MMUCR.ME = 1).
Note:
R/W
25
9
R/W
24
8
SZ1, PR1, SZ0, and PR0 bits are valid only in
TLB compatible mode.
TTB
TTB
R/W R/W R/W
23
7
Rev.1.00 Jan. 10, 2008 Page 155 of 1658
22
6
7. Memory Management Unit (MMU)
21
5
R/W R/W R/W R/W R/W
20
4
19
3
REJ09B0261-0100
18
2
17
1
16
0