參數(shù)資料
型號: M37753M8C-XXXHP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP80
封裝: FINE PITCH, QFP-80
文件頁數(shù): 61/109頁
文件大?。?/td> 865K
代理商: M37753M8C-XXXHP
55
MITSUBISHI MICROCOMPUTERS
M37753M8C-XXXFP, M37753M8C-XXXHP
M37753S4CFP, M37753S4CHP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
A-D CONVERTER
The A-D converter is a 10-bit successive approximation converter.
The use of A-D converter or the use of comparator can be selected
for each A-D input pin. The contents of the comparator function se-
lect register specify it.
Figure 68 shows a block diagram of the A-D converter.
Fig. 68 A-D converter block diagram
Ladder network
VREF connection
select bit
AVSS
VREF
Control circuit
1
A-D register 0 (2116)
Data bus (odd)
Data bus (even)
Compa-
rator
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7/ADTRG
Address
A-D register 0 (2016)
A-D register 1 (2316)
A-D register 1 (2216)
A-D register 2 (2516)
A-D register 2 (2416)
A-D register 3 (2716)
A-D register 3 (2616)
A-D register 4 (2916)
A-D register 4 (2816)
A-D register 5 (2B16)
A-D register 5 (2A16)
A-D register 6 (2D16)
A-D register 6 (2C16)
A-D register 7 (2F16)
A-D register 7 (2E16)
Successive approximation
register
Selector
A-D conversion speed selection
1/2
f(XIN)
Clock source select bit
(bit 6 of processor mode register 1)
1
0
1
0
Pf2
Pf8
Pf4
Pf2
Clock source for peripheral
devices select bit
(bit 2 of processor mode register 1)
1/2
φAD
φ1
Selector
Comparator function select register
(0: A-D converter, 1: Comparator)
Vref
Comparator result register
(Address 6616)
A-D control register 1
(Address 1F16)
A-D control register 0
(Address 1E16)
(Address 6416)
Decoder
Frequency select
flag 0, 1
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