M16C6K9 Datasheet, PDF (132/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
A-D Converter
A-D conversion rate selection
CKS1=1
fAD
CKS0=1
1/2
1/2
CKS1=0
CKS0=0
VREF
AVSS
VCUT=0
VCUT=1
Resistor ladder
Successive conversion register
A-D control register 1 (address 03D716)
φAD
A-D control register 0 (address 03D616)
Addresses
(03C116, 03C016)
(03C316, 03C216)
(03C516, 03C416)
(03C716, 03C616)
(03C916, 03C816)
(03CB16, 03CA16)
(03CD16, 03CC16)
(03CF16, 03CE16)
A-D register 0(16)
A-D register 1(16)
A-D register 2(16)
A-D register 3(16)
A-D register 4(16)
A-D register 5(16)
A-D register 6(16)
A-D register 7(16)
Vref
Decoder
VIN ^Comparator
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
Data bus high-order
Data bus low-order
CH2,CH1,CH0=000
CH2,CH1,CH0=001
CH2,CH1,CH0=010
CH2,CH1,CH0=011
CH2,CH1,CH0=100
CH2,CH1,CH0=101
CH2,CH1,CH0=110
CH2,CH1,CH0=111
ANEX0
ANEX1
Fig.JA-1 Block diagram of A-D converter
Rev.1.00 Jun 06, 2003 page 132 of 290
OPA1,OPA0=0,0
OPA1,OPA0=0,1
OPA1, OPA0
0 0 : AN0-AN7
0 1 : ANEX0
1 0 : ANEX1
1 1 : Inhibited
OPA1,OPA0=1,0