M4640-19 View Datasheet(PDF) - Conexant Systems
Part Name
Description
Manufacturer
M4640-19 Datasheet PDF : 47 Pages
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M46
Baseband Processor
Pin #
M7, D13
L7, D10
K3, M9, J14, B12,
B7, C6
K2, P10, K13, E14,
B14, D7
E2, H4, L11, E13,
C7
P4
M5
N4
P3
B2
D4
C3
C4
B1
H12
H13
H11
J12
J13
H14
J11
K12
M11
P13
N12
L10
P12
N11
P11
N10
N9
L8
M8
N8
P8
N7
Pin Name
CVDD
CVSS
IOVDD
IOVSS
DSPVDD
TESTP
TDI
TDO
TMS
RESET
CLK_REQ
SYS_CLK
YCLK
DSPTST
A[0]
A[1]
A[2]
A[3]
A[4]
A[5]
A[6]
A[7]
A[8]
A[9]
A[10]
A[11]
A[12]
A[13]
A[14]
A[15]
A[16]
A[17]
A[18]
A[19]
A[20]
A[21]
Table 1. BP Pinout Assignments (1 of 2)
Description
Microcontroller supply
Microcontroller ground
I/O pins supply
Pin#
Power Supply
E4, H3, M13, E12,
A7
C12
D12
Pin Name
DSPVSS
PLLVDD
PLLVSS
I/O pins ground
A14
VRTC
DSP supply
Test
JTAG data In
JTAG data Out
JTAG mode select
Power-on reset
Clock request signal
System clock
Test
Test
Address bus 0 to 21
Test/JTAG
M4
P2
N5
System
B3
C13
B13
C11
External Bus
K11
K14
L12
L13
L14
M14
M12
P14
M10
L9
N2
L4
J2
J4
J3
H2
N6
P5
P7
L6
M6
L5
TCLK
TRES
IROMEN
STROBE
ALARM
XTLI
XTLO
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D[8]
D[9]
D[10]
D[11]
D[12]
D[13]
D[14]
D[15]
READ
WRITE
CS[0]
CS[1]
BS[0]
BS[1]
Description
DSP ground
PLL supply
PLL ground
Supply pin for Real-Time Clock circuitry
JTAG clock
JTAG reset
Enable Internal ROM
Test
RTC alarm
32 kHz crystal input
32 kHz crystal output
Data bus 0 to 15
Read strobe
Write strobe
Flash select, chip select 0
RAM select, chip select 1
Byte select for 16-bit SRAM (lower byte)
Byte select for 16-bit SRAM (upper byte)
4
June 14, 2000
Conexant
Proprietary Information and Specifications are Subject to Change
100779C
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