CMAXQUSB 데이터 시트보기 (PDF) - Maxim Integrated
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CMAXQUSB Datasheet PDF : 15 Pages
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CMAXQUSB User’s Guide
Table 2. Connector P4 Description (continued)
P4 PIN
LABEL
GPIO DESIGNATOR
FUNCTION
20
D1
K2 when K0 = 1
Memory Data
21
D2
K3 when K0 = 1
Memory Data
22
D3
K4 when K0 = 1
Memory Data
23
D4
K5 when K0 = 1
Memory Data
24
D5
K6 when K0 = 1
Memory Data
25
D6
K7 when K0 = 1
Memory Data
26
D7
K8 when K0 = 1
Memory Data MSB
27
K1
K1
General-Purpose I/O
28
K2
K2
General-Purpose I/O
29
K3
K3
General-Purpose I/O
30
K4
K4
General-Purpose I/O
31
K5
K5
General-Purpose I/O
32
K6
K6
General-Purpose I/O
33
K7
K7
General-Purpose I/O
34
K8
K8
General-Purpose I/O
35
MISO
K11
SPI Master-In, Slave-Out (MISO) Data
36
MOSI
K12
SPI Master-Out, Slave-In (MOSI) Data
37
SCLK
K10
SPI Clock
38
CS
K9
SPI Chip Select. Configurable active high or active low.
39
OW
K15
General-Purpose I/O, Maxim 1-Wire Bus
40
—
—
No Connection
*This +12V signal is provided only for legacy systems and is normally unpowered.
Connector P5: JTAG Debug/Programming
Interface
Connector P5 is used during factory test to program the
firmware into the MAXQ2000. This connector pinout is
identical to the MAXQ2000 EV kit, MAXQ2000-KIT. See
Table 3.
Table 3. Connector P5 Description
P5 PIN LABEL
FUNCTION
1
TCK TCK to MAXQ2000 Test Access Port (P4.0)
2, 10 GND Ground Return
3
TDO TDO to MAXQ2000 Test Access Port (P4.3)
4 VDDIO MAXQ2000 VDDIO Power Supply
5
TMS TMS to MAXQ2000 Test Access Port (P4.2)
6 RESET Active-High Reset to MAXQ2000
7
KEY No Connection. Pin is physically removed.
8
+5V Optional +5V Connection
9
TDI TDI from MAXQ2000 Test Access Port
Connector P6: Maxim 1-Wire Interface
Although there are currently no mating EV kits that use
this feature, the MAXQ2000’s 1-Wire interface signal
connects to header P6. See Table 4.
Table 4. Connector P6 Description
P6 PIN
1
2
3
LABEL
VDD
OW
GND
FUNCTION
VDD Power Supply
Maxim 1-Wire Interface, Through Level
Translator U6
Ground Return
6
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