afs600 Actel Corporation, afs600 Datasheet - Page 87

• Manufacturer Part Number: afs600
• Description: Actel Fusion Programmable System Chips Mixed-signal Family With Optional Arm Support
• Manufacturer: Actel Corporation

Table 2-36
in the following sections.
Table 2-36 • Analog Block Pin Description
Signal Name
VAREF
GNDREF
MODE[3:0]
SYSCLK
TVC[7:0]
STC[7:0]
ADCSTART
PWRDWN
ADCRESET
BUSY
CALIBRATE
DATAVALID
RESULT[11:0]
TMSTBINT
SAMPLE
VAREFSEL
CHNUMBER[4:0]
ACMCLK
ACMWEN
ACMRESET
ACMWDATA[7:0]
ACMRDATA[7:0]
ACMADDR[7:0]
CMSTB0 to CMSTB9
GDON0 to GDON9
TMSTB0 to TMSTB9
DAVOUT0, DACOUT0, DATOUT0 to
DAVOUT9, DACOUT9, DATOUT9
DENAV0, DENAC0, DENAT0 to
DENAV9, DENAC9, DENAT9
describes each pin in the Analog Block. Each function within the Analog Block will be explained in detail in
Number
of Bits
12
10
10
10
30
30
1
1
4
1
8
8
1
1
1
1
1
1
1
1
1
5
1
1
1
8
8
8
Input/Output
Direction
Output
Output
Output
Output
Output
Output
Output
A d v an c ed v1 . 4
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Voltage reference for ADC
External ground reference
ADC operating mode
External system clock
Clock divide control
Sample time control
Start of conversion
Comparator power-down if 1
ADC resets and disables Analog Quad –
active high
1 – Running conversion
1 – Power-up calibration
1 – Valid conversion result
Conversion result
Internal temp. monitor strobe
1 – An analog signal is actively being
sampled
acquisition only)
0 – No analog signal is being sampled
0 = Output internal voltage reference
(2.56 V) to VAREF
1 = Input external voltage reference from
VAREF and GNDREF
Analog input channel select
ACM clock
ACM write enable – active high
ACM reset – active low
ACM write data
ACM read data
ACM address
Current monitor strobe – 1 per quad,
active high
Control to power MOS – 1 per quad
Temperature monitor strobe – 1 per quad;
active high
Digital outputs – 3 per quad
Digital input enables – 3 per quad
(stays
Actel Fusion Programmable System Chips
Function
high
during
signal
Input multiplexer
Location of
Analog Quad
Analog Quad
Analog Quad
Analog Quad
Analog Quad
Details
ACM
ACM
ACM
ACM
ACM
ACM
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
2-73