Port Integration Module (S12VRPPIMV1)
MC9S12VRP Family Reference Manual Rev. 1.3
NXP Semiconductors
67
2.3.2.6
ECLK Control Register (ECLKCTL)
2.3.2.7
IRQ Control Register (IRQCR)
Address 0x001C
Access: User read/write
1
1
Read: Anytime
Write: Anytime
7
6
5
4
3
2
1
0
R
NECLK
0
0
0
0
0
0
0
W
Reset:
1
0
0
0
0
0
0
0
Figure 2-7. ECLK Control Register (ECLKCTL)
Table 2-16. ECLKCTL Register Field Descriptions
Field
Description
7
NECLK
No ECLK
— Disable ECLK output
This bit controls the availability of a free-running clock on the ECLK pin. This clock has a fixed rate equivalent to the
internal bus clock.
1 ECLK disabled
0 ECLK enabled
Address 0x001E
Access: User read/write
1
1
Read: Anytime
Write:
IRQE: Once in normal mode, anytime in special mode
IRQEN:
Anytime
7
6
5
4
3
2
1
0
R
IRQE
IRQEN
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-8. IRQ Control Register (IRQCR)
Table 2-17. IRQCR Register Field Descriptions
Field
Description
7
IRQE
IRQ select edge sensitive only
—
1 IRQ pin configured to respond only to falling edges. Falling edges on the IRQ pin are detected anytime when
IRQE=1 and are cleared only upon a reset or the servicing of the IRQ interrupt.
0 IRQ configured for low level recognition
6
IRQEN
IRQ enable
—
1 IRQ pin is connected to interrupt logic
0 IRQ pin is disconnected from interrupt logic
Summary of Contents for MC9S12VRP64
Page 16: ...MC9S12VRP Family Reference Manual Rev 1 3 16 NXP Semiconductors ...
Page 46: ...Device Overview S12VRP Series MC9S12VRP Family Reference Manual Rev 1 3 46 NXP Semiconductors ...
Page 236: ...S12S Debug Module S12DBGV2 MC9S12VRP Family Reference Manual Rev 1 3 236 NXP Semiconductors ...
Page 244: ...Interrupt Module S12SINTV1 MC9S12VRP Family Reference Manual Rev 1 3 244 NXP Semiconductors ...
Page 358: ...Timer Module TIM16B2CV3 MC9S12VRP Family Reference Manual Rev 1 3 358 NXP Semiconductors ...
Page 436: ...Supply Voltage Sensor BATSV2 MC9S12VRP Family Reference Manual Rev 1 3 436 NXP Semiconductors ...
Page 528: ...NVM Electrical Parameters MC9S12VRP Family Reference Manual Rev 1 3 528 NXP Semiconductors ...
Page 530: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 530 NXP Semiconductors ...
Page 531: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 NXP Semiconductors 531 ...
Page 532: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 532 NXP Semiconductors ...