CDB5460AU Cirrus Logic Inc, CDB5460AU Datasheet - Page 6

• Manufacturer Part Number: CDB5460AU
• Description: EVALUATION BOARD FOR CS5460A
• Manufacturer: Cirrus Logic Inc

Specifications of CDB5460AU

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CS5460A
• Primary Attributes: 1-Phase Current & Voltage Monitoring
• Secondary Attributes: Graphical User Interface, SPI™ & USB Interfaces
• Processor To Be Evaluated: CS5460A, C8051F320
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

for the 8051 microcontroller (8051_REGIN). Jumper J9 allows the 8051_REGIN supply to be sourced
from either the Vu+_EXT binding post (J6), +5V binding post (J3) or VD+_EXT binding post (J5).
1.6
With a jumper connection on J18 (AUTO-BOOT ENABLE), the CS5460A operates in auto-boot mode and
the CDB5460AU board operates as a stand-alone system without attaching it to a PC. When in auto-boot
mode, a hardware reset (press on S1) will cause the CS5460A to boot up using the serial data from the
serial EEPROM on the board (U10). When the CS5460A is in auto-boot mode, the SPI™ connections be-
tween the microcontroller and the CS5460A are removed and the GUI software can not access the
CS5460A registers and functions.
6
Analog (VA+) Digital (VD+) 8051 (Vu+)
+5
+5
Auto-boot Mode
Power Supplies
+3.3
+5
+5
+5
Table 4. Power Supply Connections
+5V
+5
+5
Power Post Connections
GND
0
0
VD+EXT VU+EXT
+3.3
NC
NC
NC
+5
NC
NC
NC
NC
+5
+5
+5
+5
VD+_EXT
VD+_EXT
VD+_EXT
VD+_EXT
VD+_EXT
VD+_EXT
VD+_EXT
VD+_EXT
VD+_EXT
+3.3
+3.3
+3.3
+3.3
+3.3
+3.3
+3.3
+3.3
+3.3
+5
+5
+5
+5
+5
+5
+5
+5
+5
VD+
O
O
(Default)
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
J8
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
CDB5460AU
Vu+_EXT
Vu+_EXT
Vu+_EXT
Vu+_EXT
Vu+_EXT
Vu+_EXT
Vu+_EXT
Vu+_EXT
Vu+_EXT
8051-REGIN
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
VD+
DS487DBU1
+5
+5
+5
+5
+5
+5
+5
+5
+5
O
O
(Default)
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
J9
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051
8051