 |
 |
|
 |
 |
ZBasic Language Reference
118
ZX Microcontroller Family
PORTF_INT0¹, PORTF_INT1¹
PORTH_INT0¹, PORTH_INT1¹
PORTJ_INT0¹, PORTJ_INT1¹
PORTK_INT0¹, PORTK_INT1¹
PORTQ_INT0¹, PORTQ_INT1¹
PORTR_INT0, PORTR_INT1
PORTR_INT0, PORTR_INT1
RTC_COMP, RTC_OVF
RTC_COMP, RTC_OVF
SPIC_INT, SPID_INT
SPIC_INT, SPID_INT
SPIE_INT, SPIF_INT
TCC0_CCA
5
, TCC0_CCB
6
, TCC0_CCC, TCC0_CCD
TCC0_CCA
5
, TCC0_CCB
6
, TCC0_CCC, TCC0_CCD
TCC0_ERR, TCC0_OVF
5
TCC0_ERR, TCC0_OVF
5
TCC1_CCA²
TCC1_CCA²
TCC1_CCB
4
, TCC1_ERR, TCC1_OVF
TCC1_CCB
4
, TCC1_ERR, TCC1_OVF
TCD0_CCA
5
, TCD0_CCB
6
, TCD0_CCC, TCD0_CCD
TCD0_CCA
5
, TCD0_CCB
6
, TCD0_CCC, TCD0_CCD
TCD0_ERR, TCD0_OVF
5
TCD0_ERR, TCD0_OVF
5
TCD1_CCA³, TCD1_CCB
6
, TCD1_ERR, TCD1_OVF
5
TCD1_CCA³, TCD1_CCB
6
, TCD1_ERR, TCD1_OVF
5
TCE0_CCA
5
, TCE0_CCB
6
, TCE0_CCC, TCE0_CCD
TCE0_CCA
5
, TCE0_CCB
6
, TCE0_CCC, TCE0_CCD
TCE0_ERR, TCE0_OVF
5
TCE0_ERR, TCE0_OVF
5
TCE1_CCA
5
, TCE1_CCB
6
, TCE1_ERR, TCE1_OVF
5
TCE1_CCA
5
, TCE1_CCB
6
, TCE1_ERR, TCE1_OVF
5
TCF0_CCA
5
, TCF0_CCB
6
, TCF0_CCC, TCF0_CCD
TCF0_ERR, TCF0_OVF
5
TCF1_CCA
5
, TCF1_CCB
6
, TCF1_ERR, TCF1_OVF
5
TWIC_TWIM, TWIC_TWIS
TWIC_TWIM, TWIC_TWIS
TWID_TWIM, TWID_TWIS
TWIE_TWIM, TWIE_TWIS
TWIE_TWIM, TWIE_TWIS
TWIF_TWIM, TWIF_TWIS
USARTC0_DRE, USARTC0_RXC, USARTC0_TXC
USARTC0_DRE, USARTC0_RXC, USARTC0_TXC
USARTC1_DRE, USARTC1_RXC, USARTC1_TXC
USARTC1_DRE, USARTC1_RXC, USARTC1_TXC
USARTD0_DRE
7
, USARTD0_RXC
7
, USARTD0_TXC
7
USARTD0_DRE
7
, USARTD0_RXC
7
, USARTD0_TXC
7
USARTD1_DRE
8
, USARTD1_RXC
8
, USARTD1_TXC
8
USARTD1_DRE
8
, USARTD1_RXC
8
, USARTD1_TXC
8
USARTE0_DRE
8
, USARTE0_RXC
8
, USARTE0_TXC
8
USARTE0_DRE
8
, USARTE0_RXC
8
, USARTE0_TXC
8
USARTE1_DRE
8
, USARTE1_RXC
8
, USARTE1_TXC
8
USARTF0_DRE
8
, USARTF0_RXC
8
, USARTF0_TXC
8
USARTF1_DRE
8
, USARTF1_RXC
8
, USARTF1_TXC
8
1
Used by WaitForInterrupt().
2
Used by the RTC, cannot be replaced.
3
Used by OpenCom() for channels 3-6 (software UART).
4
Used by OpenX10().
5
Used by InputCapture().
6
Used by OutputCapture().
7
Used by Com1, cannot be replaced.
8
Used by OpenCom() for channels 2 and 7-12 (where supported).
For the form of ISR definition shown in the example above, the compiler takes care of saving the
necessary registers upon entry, establishing the standard register state, restoring registers upon exit and
executing a “return from interrupt” instruction. For special cases, you may define a “naked” ISR – one in
which none of this is done. Using this special form is advised only for advanced programmers,
particularly those that understand the nuances of the underlying code.
An example of a naked ISR containing only a “return from interrupt” is shown below. This is commonly
called a “stub” ISR. It is important to note that defining a naked ISR with no code statements in it at all
results in undefined behavior. At a minimum, you should always include an assembly language “reti” as
shown in the example below.
|
 |
|