DM562P
V.90 Integrated Data/ Fax/Voice/Speakerphone
Modem Device Single Chip with Memory Built in
43
46
43
46
43
46
XTAL2
/PWR
O
O
Crystal Oscillator Output
Controller Program Write Enable:
This pin is used to enable FLASH ROM
programming.
Data Output Pin Of Serial Port 1
The serial data is clocked out through this pin
according to the rising edge of SCLK. The MSB is
sent immediately after the falling edge of the
FR_SP1 signal.
Bank Switch Control:
These signals are used to switch external program
memory between banks.
CA16 CA17
Bank 0
0
0
Bank 1
1
0
Bank 2
0
1
Bank 3
1
1
Controller Counter 0 Input
Controller Counter 1 Input
Ring Signal Input
TxDSP Interrupt 1 Input
DTR Input Pin (P1.1)
Hook Relay Control (P1.2)
Voice Relay Control. Modem Control Output
(memory map is bit 3 of DAA at memory address
D000H)
EEPROM Control Pins (P1.4-P1.6)
Loop Current Detection. Modem Input Control:
This pin is mapped to bit0 of address D000H.
Reference Clock For Serial Port 1 And Serial
Port 2
Controller Serial Port Data Input
Controller Serial Port Data Output
Rx DSP Interrupt 3 Input
Controller Program Store Enable:
This output goes low during a fetch from external
program memory.
Controller External Data Memory Write Control
Controller External Data Memory Read Control
Modem Received Data :(External)
Shifted out to the EIA port through this pin
according to the rising edge of RXDCLK.
Test pin 1, normal ground
Controller Address Bus
48
48
48
TD_SP1
O
49
47
49
47
49
47
CA16
CA17
O
51
52
57
76
58
59
60
76
57
58
59
60
76
57
58
59
60
T0
T1
/RI
TxSCLK*2
/DTR
/OH
/VOICE
I
I
I
I
I
O
O
61-63
66
79
68
69
70
71
61-63
61-63
EEPROM 1-3
/LCS
SCLK
RXD
TXD
RxSCLK
/PSEN
I/O
I
I
I
O
I
O
66
66
70
71
70
71
72
73
78
72
73
72
73
/WR
/RD
DSPRxD
O
O
O
117
81,82,
83,84,
85,86,
87,88
90,91,
Final
117
81,82,
83,84,
85,86,
87,88
90,91,
117
81,82,
83,84,
85,86,
87,88
90,91,
TEST1
CA15,CA14,
CA13,CA12,
CA11,CA10,
CA9,CA8
CA7 - CA0
O
O
Controller Address Bus
9
Version: DM562P-DS-F01
February 02, 2004
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
