Configuration Items - Freescale Semiconductor DSP56800E User Manual

5.12.2.2

Configuration Items

This section summarizes the symbols used in macro definitions for the static PDB module
configuration by the driver initialization routine. Configuration symbols are intended for the
application (project) specific configuration file appconfig.h.
PDB_SCR_INIT
PDB_DELAYA_INIT
PDB_DELAYB_INIT
PDB_MOD_INIT
5.12.2.3 API Specification
This section specifies the exact usage for each API function.
Function arguments for each routine are described as in, out, or inout.
1. in argument means that the parameter value is an input only to the function.
2. out argument means that the parameter value is an output only from the function.
3. inout argument means that a parameter value is an input to the function, but the same
parameter is also an output from the function.
Note: inout parameters are typically input pointer variables in which the caller passes the address
of a pre-allocated data structure to a function. The function stores its results within that data
structure. The actual value of the inout pointer parameter is not changed.
ioctl call(s):
The ioctl call is generally represented by one of the following forms:
UWord16 ioctl(const int *pModuleBase, void cmd, UWord16 param);
UWord16 ioctl(const int *pModuleBase, void cmd, void* pParam);
Description: The ioctl call "changes" the PDB device modes or accesses the PDB register(s). The
third ioctl parameter is either a value or a pointer, depending on the type of cmd.
Arguments:
pModuleBase
5-480
Table 5-383. PDB Configuration Items for appconfig.h
SYMBOL
Table 5-384. PDB Driver Arguments - ioctl
in
Targeting 56F8xxx Platform
TYPE DESCRIPTION
UWord16 The initial value of the PDB Sta-
tus and Control Register
UWord16 The initial value of the PDB
DelayA Register
UWord16 The initial value of the PDB
DelayB Register
UWord16 The initial value of the PDB
Counter Modulus Register
PDB module identifier. Use PDB.
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