NSB-5
System Module
PAMS Technical Documentation
Page 38
Nokia Mobile Phones Ltd.
Issue 1 03/01
M5
MCURdX
O
2
MCU read strobe
MCU read strobe – OE
to memories
N5
MCUWrX
O
2
MCU write strobe
MCU write strobe – WE
to memories
A6
COBBACSX
O
2
Chip select for COBBA
COBBA chip select
B6
VCC_IO
PWR
I/O power
VBB
C6
COBBAClk
O
4
COBBA clock, 13MHz
COBBA clk (RFIclk)
D6
AccRxData
I
Accessory Rx data,
Flash_Rx
Accessory Rx data,
Flash_Rx (FBUS_Rx)
K6
ExtMCUDa0
I/O
2/down
MCU data bus
SRAM/FLASH data 0
L6
ExtMCUDa1
I/O
2/down
MCU data bus
SRAM/FLASH data 1
M6
ExtMCUDa2
I/O
2/down
MCU data bus
SRAM/FLASH data 2
N6
ExtMCUDa3
I/O
2/down
MCU data bus
SRAM/FLASH data 3
A7
COBBASDa
I/O
2
Transfer of control data
Transfer of control data
(COBBA SD)
B7
VCC_CORE
PWR
Core power
Core power – supplied
from CCONT V2V
C7
COBBAIDa
I/O
2
Bidirectional transfer of in-
phase samples
Bidirectional transfer of
in-phase samples
(COBBA Idata)
D7
COBBAQDa
I/O
2
Bidirectional transfer of
quadrature samples
Bidirectional transfer of
quadrature samples
(COBBA Qdata)
K7
VCC_IO
PWR
I/O power
VBB
L7
ExtMCUDa4
I/O
2/down
MCU data bus
SRAM/FLASH data 4
M7
ExtMCUDa5
I/O
2/down
MCU data bus
SRAM/FLASH data 5
N7
ExtMCUDa6
I/O
2/down
MCU data bus
SRAM/FLASH data 6
A8
PCMSClk
I/O
Down
Transmit frame sync, FSX
Transmit frame sync,
FSX (to COBBA)
B8
PCMDClk
I/O
Down
Transmit clock, CLKX
Transmit clock, CLKX (to
COBBA)
C8
PCMIO
I/O
ROLLER_A – Input bit
for roller
D8
DSPXF
I/O
2/up
External flag
External flag – NC
K8
MCUGenIODa2
I/O
2/down
General purpose I/O port –
MCU data in 16-bit mode
FLASH data 10
L8
MCUGenIODa1
I/O
2/down
General purpose I/O port –
MCU data in 16-bit mode
FLASH data 9
M8
MCUGenIODa0
I/O
2/down
General purpose I/O port –
MCU data in 16-bit mode
FLASH data 8