Datasheet
DS80PCI800
www.ti.com
SNLS334E –APRIL 2011–REVISED MARCH 2012
Table 7. Example of EEPROM for 4 Devices using 2 Address Maps (continued)
47 2F 0x54 End Device 0, 1 - Address Offset 39
48 30 0x00 Begin Device 2, 3 - Address Offset 3
49 31 0x00
50 32 0x04
51 33 0x07
52 34 0x00
53 35 0x00 EQ CHB0 = 00
54 36 0xAB VOD CHB0 = 1.0V
55 37 0x00 DEM CHB0 = 0 (0dB)
56 38 0x00 EQ CHB1 = 00
57 39 0x0A VOD CHB1 = 1.0V
58 3A 0xB0 DEM CHB1 = 0 (0dB)
59 3B 0x00
60 3C 0x00 EQ CHB2 = 00
61 3D 0xAB VOD CHB2 = 1.0V
62 3E 0x00 DEM CHB2 = 0 (0dB)
63 3F 0x00 EQ CHB3 = 00
64 40 0x0A VOD CHB3 = 1.0V
65 41 0xB0 DEM CHB3 = 0 (0dB)
66 42 0x01
67 43 0x80
68 44 0x01 EQ CHA0 = 00
69 45 0x56 VOD CHA0 = 1.0V
70 46 0x00 DEM CHA0 = 0 (0dB)
71 47 0x00 EQ CHA1 = 00
72 48 0x15 VOD CHA1 = 1.0V
73 49 0x60 DEM CHA1 = 0 (0dB)
74 4A 0x00
75 4B 0x01 EQ CHA2 = 00
76 4C 0x56 VOD CHA2 = 1.0V
77 4D 0x00 DEM CHA2 = 0 (0dB)
78 4E 0x00 EQ CHA3 = 00
79 4F 0x15 VOD CHA3 = 1.0V
80 50 0x60 DEM CHA3 = 0 (0dB)
81 51 0x00
82 52 0x00
83 53 0x54
84 54 0x54 End Device 2, 3 - Address Offset 39
Note: CRC_EN = 0, Address Map = 1, >256 byte = 0, Device Count[3:0] = 3. This example has all 8–channels
set to EQ = 00 (min boost), VOD = 1.0V, DEM = 0 (0dB) and multiple device can point to the same address map.
System Management Bus (SMBus) and Configuration Registers
The System Management Bus interface is compatible to SMBus 2.0 physical layer specification. ENSMB = 1kΩ
to VDD to enable SMBus slave mode and allow access to the configuration registers.
The DS80PCI800 has the AD[3:0] inputs in SMBus mode. These pins are the user set SMBUS slave address
inputs. The AD[3:0] pins have internal pull-down. When left floating or pulled low the AD[3:0] = 0000'b, the device
default address byte is B0'h. Based on the SMBus 2.0 specification, the DS80PCI800 has a 7-bit slave address.
The LSB is set to 0'b (for a WRITE). The device supports up to 16 address byte, which can be set with the
AD[3:0] inputs. Below are the 16 addresses.
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