Nokia 9000i Service Manual page 56

RAE/RAK–1N
Baseband
– data functions
– test functions
Technical description
Table 31. External Signals and Connections, Inputs
Signal Name
VL2 Logic supply voltage. Max 150 mA.
DSPCLKEN Clock enable for DSP clock oscillator circuit
DSP1RSTX Reset for the DSP
PCMDATRCLKX PCM data input clock
DBUS data input clock
PCMCOSYCLKX PCM data bit sync clock
CODEC_CLK PCM data output clock
PCMOUT Received audio in PCM format
DBUSCLK DBUS data output clock
DBUSSYNC DBUS data bit sync clock
RDA DBUS received data
INT0, INT1 Interrupts for the DSP
Table 32. External Signals and Connections, Outputs
Signal Name
PCMIN Transmitted audio in PCM format
IOX I/O enable. Indicates access to DSP I/O address space.
RWX Read/Write control
DSPAD(16:0) Address bus and control signals
TDA DBUS transmit data
Table 33. External Signals and Connections, Bidirectional
Signal Name
DSPDA(15:0) 16–bit data bus
Page 2–30
– frame structure control
– control of operations during a TDMA frame (with
– control of multiframe structure
– channel configuration control
– RLP CRC calculation
– fax V110 frame encode/decode
– functions for RF measurements
– debugging functions for product development
Signal description
Signal description
Signal description
Technical Documentation
ASIC)
After Sales
From
PWRU
ASIC
ASIC
ASIC
ASIC
ASIC
AUDIO
ASIC
ASIC
B2B Conn.
ASIC
To
AUDIO
ASIC
ASIC
ASIC
B2B Conn.
To/From
ASIC
Original, 08/96