ZBasic System Library
23
ZBasic Microcontrollers
xmega16d4, xmega32d4
T44
TimerC0
TimerD0
TimerE0
11, C.1
21, D.1*
29, E.1
xmega64d3, xmega128d3, xmega192d3, xmega256d3
T64
TimerC0
TimerD0
TimerE0
TimerF0
17, C.1
27, D.1*
37, E.1
47, F.1
xmega64a3, xmega128a3, xmega256a3, xmega256a3b
T64
TimerC0
TimerD0
TimerE0
TimerE1
TimerF0
17, C.1
27, D.1*
37, E.1
41, E.5
47, F.1
xmega64a1, xmega128a1
T100
TimerC0
TimerD0
TimerE0
TimerE1
TimerF0
TimerF1
16, C.1
26, D.1*
36, E.1
40, E.5
46, F.1
50, F.5
*
Denotes the default OutputCapture pin.
1
Requires the TIMER1_COMPC ISR and supports OutputCapture modulation.
As noted in the two tables above, some devices support OutputCapture modulation on a dedicated pin.
This capability allows the OutputCapture waveform to modulate the compare output of the Serial Timer.
See the description of OutputCaptureEx for more information.
On some ZX devices, your program is stored in an external EEPROM that is read and written using the
SPI interface. A dedicated I/O pin is required for selecting the EEPROM device during SPI operations
and this I/O pin cannot be used for other purposes. However, the SPI bus itself can be used to
communicate with other SPI devices. Although most SPI devices are tolerant of the ZX device using the
SPI bus to fetch instructions from your program, some are not. Generally speaking, if you can send and
receive all of the data that an SPI device requires using a single call to SPICmd(), then that SPI device is
usable with the ZX models that utilize an external EEPROM.
The table below indicates which ZX devices use an external EEPROM for user program storage and, if
so, the I/O pin used for the chip select. For devices that do not use an external EEPROM for user
program storage, the indicated chip select pin can be used for general purpose I/O with the proviso that if
the SPI controller is used in the application program the chip select pin must either be an output or it must
be held high during SPI transactions.
SPI EEPROM Usage and Control/Data Pins By Controller Index for ZX Devices
ZX Device
Uses SPI
EEPROM
Ctrl.
Idx.
CS
Pin
SCK
Pin
MOSI
Pin
MISO
Pin
ZX-24, ZX-24a, ZX-24p
Yes
0¹
B.4
B.7
B.5
B.6
ZX-40, ZX-40a, ZX-40p
Yes
0
5, B.4
8, B.7
6, B.5
7, B.6
ZX-44, ZX-44a, ZX-44p
Yes
0
44, B.4
3, B.7
1, B.5
2, B.6
ZX-24x
No
0¹
1
D.4
8, C.4
D.7
5. C.7
D.5
7, C.5
D.6
6, C.6
ZX-24n, ZX-24r, ZX-24s
No
0¹
B.4
B.7
B.5
B.6
ZX-40n, ZX-40r, ZX-40s, ZX-40t
No
0
5, B.4
8, B.7
6, B.5
7, B.6
ZX-44n, ZX-44r, ZX-44s, ZX-44t
No
0
44, B.4
3, B.7
1, B.5
2, B.6
ZX-328n, ZX-328l
No
0
16, B.2
19, B.5
17, B.3
18, B.4
ZX-32n, ZX-32l
No
0
14, B.2
17, B.5
15, B.3
16, B.4
ZX-1281, ZX-1281n
No
0
10, B.0
11, B.1
12, B.2
13, B.3
ZX-1280, ZX-1280n
No
0
19, B.0
20, B.1
21, B.2
22, B.3
ZX-32a4
No
0
24, D.4
27, D.7
25, D.5
26, D.6
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