MC33596FCESLASHR2 datasheet(42/70 Pages) FREESCALE

42 / 70 page

MC33596 Data Sheet, Rev. 4

Bank Access and Register Mapping

Freescale Semiconductor

Bits RSSI[3:0] contain the result of the analog-to-digital conversion of the signal measured at the IF filter

output.

Bank Access and Register Mapping

Registers are physically mapped following a byte organization. The possible address space is 32 bytes. The

base address is specified in the command byte. This is then incremented internally to address each register,

up to the number of registers specified by N[1:0], also specified by this command byte. All registers can

then be scanned, whatever the type of transmission (read or write); however, writing to read-only bits or

registers has no effect. When the last implemented address is reached, the internal address counter

automatically loops back to the first mapped address ($00).

At any time, it is possible to write or read the content of any register of Bank A and Bank B. Register access

is defined as follows:

R/W

Bit can be read and written.

Bit can be read. Write has no effect on bit value.

Bit can be read. Read or write resets the value.

R [A]

Bit can be read. This returns the same value as Bank A.

RR [A]

Bit can be read. This returns the same value as Bank A. Read or write resets the value.

Table 20. Access to Specific Bits

Bit

Bank

Byte

Access

Comment

RESET

CONFIG1

R/W

Available in BANKA.

OLS

A, B

CONFIG3

R-R[A]

Bit value is the real time status of the PLL, BANKA,

and BANKB access reflect the same value.

LDVS

A, B

CONFIG3

RR-RR[A}

Bit value is the latched value of the low-voltage

detector. Read or write from any bank resets value.

SOE

A, B

CONFIG2

R/W-R[A}

SOE can be modified in BANKA. Access from BANKB

reflects BANKA value.

RSSIx

A, B

RSSI

R-R[A}

RSSI value is directly read from RSSI converter.

Reflected value is the same whatever the active byte.

MC33596FCE/R2 Datasheet(PDF) 42 Page - Freescale Semiconductor, Inc

MC33596FCE/R2 Datasheet(HTML) 42 Page - Freescale Semiconductor, Inc

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