R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 330
R8A77850AADBGV
Manufacturer Part Number
R8A77850AADBGV
Description
IC SUPERH MCU 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850AADBGV
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850AADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 330 of 1694
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10. Interrupt Controller (INTC)
10.3.2
(1)
USERIMASK is a 32-bit readable and conditionally writable register that sets the acceptable
interrupt level. This register is allocated to the 64-Kbyte page that the other registers in the INTC
are not allocated. Therefore, only this register can be set to be accessible in user mode by changing
the address to area 7 address through the MMU.
The interrupts that the level is lower than the level set in the UIMASK bits are masked. When H'F
is set in the UIMASK bit, all interrupts other than the NMI are masked.
The interrupts that the level is higher than the level set in the UIMASK bits are accepted under the
following conditions. The corresponding interrupt mask bit in the interrupt mask register is cleared
to 0 (the interrupt is enabled). The IMASK bit in SR is set lower than its interrupt level.
The value of the UIMASK bit does not change even if an interrupt is accepted.
USERIMASK is initialized to H'0000 0000 (all interrupts are enabled) by a power-on reset or
manual reset.
To prevent incorrect writing, this register should not be written to unless bits 31 to 24 are set to
H'A5.
Rev.1.00 Jan. 10, 2008 Page 298 of 1658
REJ09B0261-0100
Initial value:
Initial value:
R/W:
R/W:
User Interrupt Mask Level Setting Register (USERIMASK)
Bit:
Bit:
User Mode Interrupt Disable Function
R/W
31
15
⎯
R
0
0
R/W
30
14
⎯
R
0
0
R/W
29
13
⎯
R
Code for writing (H'A5)
0
0
R/W
28
12
⎯
R
0
0
R/W
27
11
⎯
R
0
0
R/W
26
10
⎯
R
0
0
R/W
25
⎯
R
0
9
0
R/W
24
⎯
R
0
8
0
R/W
23
⎯
R
0
7
0
R/W
22
⎯
UIMASK
R
0
6
0
R/W
21
⎯
R
0
5
0
R/W
20
⎯
R
0
4
0
19
⎯
⎯
R
R
0
3
0
18
⎯
⎯
R
R
0
2
0
17
⎯
⎯
R
R
0
1
0
16
⎯
⎯
R
R
0
0
0
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