gc80c521a CORERIVER Semiconductor, gc80c521a Datasheet - Page 135

• Manufacturer Part Number: gc80c521a
• Description: Flash / Isp / Iap 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1)
R/W(0)
PSPI
P3.7
P3
EIP
IT
Appendix B :
-
PSPI
PI2C
PWDT
PX5
PX4
PX3
PX2
IT5
IT4
IT3
IT2
(B2h) : Interrupt Type Selection Register
(B0h) : Port 3 Register
(B1h) : Extended Interrupt Priority Register
P3.6
-
-
: SPI interrupt priority bit.
: I2C interrupt priority bit.
: Watchdog timer interrupt priority bit.
: External interrupt 5 priority bit.
: External interrupt 4 priority bit.
: External interrupt 3 priority bit.
: External interrupt 2 priority bit.
: Interrupt5 Type Selection Flag
[0] : Level detect
: Interrupt4 Type Selection Flag
[0] : Level detect
: Interrupt3 Type Selection Flag
[0] : Level detect
: Interrupt2 Type Selection Flag
[0] : Level detect
R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0)
P3.5
PI2C
-
PWDT
P3.4
-
R/W(1) R/W(1) R/W(1) R/W(1)
[1] : Edge detect
[1] : Edge detect
[1] : Edge detect
[1] : Edge detect
P3.3
SFR Description [B0h ~ B4h]
PX5
IT5
P3.2
PX4
IT4
P3.1
PX3
IT3
P3.0
PX2
IT2
R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1)
P4.7
P4
SPICON
-
MODE
BORD
MSSEL
CKPOL, CKPHA : SPI clock Polarity & Phase
SPIOEN : SPI Output Enable
SPIEN
(B3h) : Port 4 Register
R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0)
MODE
P4.6
(B4h) : SPI Control Register
: SPI mode selection
[0] : 4-wire mode
: SPI Transfer Bit Order
[1] : First LSB, Last MSB
: SPI Master / Slave Selection Flag
[1] : SPI Master Mode
[0,0] : Leading edge Rising, Leading edge Sampling
[0,1] : Leading edge Rising, Trailing edge Sampling
[1,0] : Leading edge Falling, Leading edge Sampling
[1,1] : Leading edge Falling, Trailing edge Sampling
[1] : SPI Output Enable
: SPI Enable Flag
[1] : SPI Enable
BORD
P4.5
(9/19)
MSSEL
P4.4
MiDAS1.0B Family
CKPOL
P4.3
CKPHA SPIOEN
[1] : 3-wire mode
[0] : First MSB, Last LSB
[0] : SPI Slave Mode
[0] : SPI Output Disable
[0] : SPI Disable
P4.2
P4.1
SPIEN
P4.0
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