DM562AP
V.90 Integrated Data/ Fax/Voice/Speakerphone
Modem Device Single Chip with Memory Built in
Preliminary
9
Version: DM562AP-DS-P02
March 05, 2004
This pin is used to enable FLASH ROM
programming.
48
48
48
TD_SP1
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.
49
47
49
47
49
47
CA16
CA17
O
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
51
T0
I
Controller Counter 0 Input
52
T1
I
Controller Counter 1 Input
57
76
76
/RI
I
Ring Signal Input
76
57
57
TxSCLK*2
I
TxDSP Interrupt 1 Input
58
58
58
/DTR
I
DTR Input Pin (P1.1)
59
59
59
/OH
O
Hook Relay Control (P1.2)
60
60
60
/VOICE
O
Voice Relay Control. Modem Control Output
(memory map is bit 3 of DAA at memory address
D000H)
61-63
61-63
61-63
EEPROM 1-3
I/O
EEPROM Control Pins (P1.4-P1.6)
66
/LCS
I
Loop Current Detection. Modem Input Control:
This pin is mapped to bit0 of address D000H.
79
66
66
SCLK
I
Reference Clock For Serial Port 1 And Serial
Port 2
68
RXD
I
Controller Serial Port Data Input
69
TXD
O
Controller Serial Port Data Output
70
70
70
RxSCLK
I
Rx DSP Interrupt 3 Input
71
71
71
/PSEN
O
Controller Program Store Enable:
This output goes low during a fetch from external
program memory.
72
72
72
/WR
O
Controller External Data Memory Write Control
73
73
73
/RD
O
Controller External Data Memory Read Control
78
DSPRxD
O
Modem Received Data :(External)
Shifted out to the EIA port through this pin
according to the rising edge of RXDCLK.
117
117
117
TEST1
Test pin 1, normal ground
81,82,
83,84,
85,86,
87,88
81,82,
83,84,
85,86,
87,88
81,82,
83,84,
85,86,
87,88
CA15,CA14,
CA13,CA12,
CA11,CA10,
CA9,CA8
O
Controller Address Bus
90,91,
92,93,
95,96,
90,91,
92,93,
95,96,
90,91,
92,93,
95,96,
CA7 - CA0
O
Controller Address Bus
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