PCF5083HSLASH001SLASHF2 datasheet(76/136 Pages) PHILIPS

76 / 136 page

1996 Oct 29

Philips Semiconductors

Objective speciﬁcation

GSM signal processing IC

PCF5083

DB_read_register

This function may be used to read the contents of a control or shadow

error, ERROR_WRONG_PARAMETER. The registers that may be read are

given in Table 59

reg_number

reg_contents

DB_wait

Wait for cycles ECLK cycles.

cycles

−

DB_write_buffer

n_words are written into buffer buff_id starting at offset buff_offset; n_words

must not be greater than 17.

buff_id

buff_offset

n_words

data[n_words]

−

DB_write_register

This function may be used to write a control or shadow register of the DSP.

Dependent on the input parameter action the register reg_number is written

with value or the value is interpreted as a mask to set or to clear only

speciﬁc bits. The procedure disables the interrupts to make sure that

nobody else can change the registers. If reg_number is out-of-range or if an

attempt is made to set or clear bits in a register, that is only writeable, the

function returns an error (ERROR_WRONG_PARAMETER). The registers

that may be changed are given in Table 60.

The action parameter may be one of following values:

action = 0; write register (reg = value)

action = 1; set bits (reg

≠ value)

action = 2; clear bits (reg

≠∼value).

reg_number

value

action

−

EM_init

This procedure sets the output mode for EM_normal_burst and

EM_sync_burst. The output_mode values are deﬁned below:

output_mode = 0; the 4th return value contains the frequency offset df, in

Hz.

output_mode = 1 (default after reset); the 4th return value contains the

imaginary part of the frequency offset df.

output_mode

−

DESCRIPTION

PARAMETERS

RETURN

VALUES

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