Zilog Z8F0130 - Manual (Page 252)

Using the ANSI C-Compiler UM013037-1212
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Zilog Developer Studio II – Z8 Encore!
User Manual
Macros
Functions
These I/O functions are provided in each of two libraries:
•
A limited C Serial IO library
•
A full-fledged Zilog Standard Library (ZSL)
When you select ZSL, these functions are linked from ZSL; otherwise, these functions are
linked from the C Serial IO library.
Zilog Functions
The following functions are Zilog specific:
•
DI – see page 229
•
EI – see page 229
•
getch – see page 230
•
INIT_FLASH – see page 230
•
init_uart – see page 232
•
kbhit – see page 232
_DEFFREQ Expands to unsigned long default frequency.
_DEFBAUD Expands to unsigned long default baud rate.
_UART0 Expands to an integer indicating UART0.
_UART1 Expands to an integer indicating UART1.
int getch( void ) ; Returns the data byte available in the selected
UART.
int init_uart(int port,unsigned long freq, unsigned long
baud); Initializes the selected UART for specified
settings and returns the error status.
unsigned char kbhit(void); Checks the receive data available on selected
UART.
reentrant unsigned char putch( char ) ; Sends a character to the selected UART and
returns the error status.
int select_port(int port); Selects the UART. Default is _UART0.
Note: