TCC76 Datasheet, PDF (86/259 Pages) List of Unclassifed Manufacturers – 32-bit RISC Microprocessor For Digital Media Player

TCC76x
Specification Rev. 0.07
32-bit RISC Microprocessor for Digital Media Player
February 23, 2005
INTERRUPT CONTROLLER
IRQ Interrupt Select Register (IRQSEL)
0x8000010C
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
CIF I2C ADC
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RDY TC32 DMA LCD CDIF UBH GS UB UT TC I2T I2R E3 E2 E1 E0
If each field is “1”, it means that the corresponding interrupt is considered as IRQ interrupt, if each field is ‘0’ it
means that its interrupt is considered as FIQ interrupt. Refer to chapter 3 for more information about IRQ / FIQ
interrupts.
External Interrupt Configuration Register (ICFG)
15 14 13 12 11 10 9 8 7 6 5
FE3 DTYPE3 FT3 FE2 DTYPE2 FT2 FE1 DTYPE1
43
FT1 FE0
0x80000110
210
DTYPE0 FT0
FE3~FE0
Filter Enable
0
Noise filter is enabled (in case of DTYPEn != 3)
1
Noise filter is disabled (in case of DTYPEn != 3)
If DTYPEn == 3, noise filter is always enabled, and this field sets which level generates the
interrupt. If it is set to 1, level high triggers interrupt, and if it is set to 0, level low triggers interrupt.
DTYPE3~0
0
1
2
3
Detection Type
Falling edge triggered external interrupt
Rising edge triggered external interrupt
Both edge triggered external interrupt
Level high / low triggered external interrupt
FEn field determines which level triggers the interrupt. If FEn == 1, level
high triggers the interrupt and FEn == 0, level low triggers the interrupt.
FT3~FT0
X
Reserved
Filter Type
Following is the summary of all above fields.
Table 5.2 Summary of External Interrupt Configuration
FEn, DTYPEn
Triggering
Noise Filter
000
Set falling edge triggered
Filter Enabled
001
Set rising edge triggered
Filter Enabled
010
Set both edge triggered
Filter Enabled
011
Set low level triggered
Filter Enabled
100
Set falling edge triggered
Filter disabled
101
Set rising edge triggered
Filter disabled
110
Set both edge triggered
Filter disabled
111
Set high level triggered
Filter Enabled
“011” and “111” are recommended to avoid conflicts caused by the different interpretation between
Wakup Event logic and Interrupt Generation logic. (Refer to “Wakeup Control Register” description).
Preliminary
5-4