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.
48
48
48
TD_SP1
O
O
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.
49
47
49
47
49
47
CA16
CA17
CA16 CA17
Bank 0
Bank 1
Bank 2
Bank 3
0
1
0
1
0
0
1
1
51
52
57
76
58
59
60
T0
T1
/RI
I
I
I
I
I
Controller Counter 0 Input
Controller Counter 1 Input
Ring Signal Input
TxDSP Interrupt 1 Input
DTR Input Pin (P1.1)
76
57
58
59
60
76
57
58
59
60
TxSCLK*2
/DTR
/OH
O
O
Hook Relay Control (P1.2)
/VOICE
Voice Relay Control. Modem Control Output
(memory map is bit 3 of DAA at memory address
D000H)
61-63
66
61-63
66
61-63
66
EEPROM 1-3
/LCS
I/O
I
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
79
SCLK
I
68
69
70
RXD
TXD
RxSCLK
I
O
I
Controller Serial Port Data Input
Controller Serial Port Data Output
70
71
70
71
Rx DSP Interrupt 3 Input
71
/PSEN
O
Controller Program Store Enable:
This output goes low during a fetch from external
program memory.
72
73
78
72
73
72
73
/WR
/RD
DSPRxD
O
O
O
Controller External Data Memory Write Control
Controller External Data Memory Read Control
(External)
Modem Received Data :
Shifted out to the EIA port through this pin
according to the rising edge of RXDCLK.
Test pin 1, normal ground
117
117
117
TEST1
81,82,
83,84,
85,86,
87,88
90,91,
81,82,
83,84,
85,86,
87,88
90,91,
81,82,
83,84,
85,86,
87,88
90,91,
CA15,CA14,
CA13,CA12,
CA11,CA10,
CA9,CA8
O
O
Controller Address Bus
CA7 - CA0
Controller Address Bus
Final
9
Version: DM562P-DS-F01
February 02, 2004
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
