LinkIt 2523 HDK v11 User's Guide
© 2015 - 2016 MediaTek Inc.
Page 41 of 82
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Table 26.
Table 26. MK20 JTAG connector pin definition
Pin number
Description
Pin number
Description
1
VIO28
2
VIO28
3
SDA_JTAG_TRST
4
GND
5
SDA_JTAG_TDI
6
GND
7
SDA_JTAG_TMS
8
GND
9
SDA_JTAG_TCLK
10
GND
11
-
12
GND
13
SDA_JTAG_TDO
14
GND
15
-
16
GND
17
-
18
GND
19
-
20
GND
4.16.13.
eMMC / micro SD holder jumpers
There are six jumpers (J1001 to J1006) (see Figure 16) dedicated for eMMC or micro SD card, as shown in Table 27.
If the assigned jumpers are idle, they can be customized for other applications. Use only the middle pin of those
jumpers. The pins are sorted from up to down starting from 1 to 6.
Table 27. eMMC/micro SD jumpers
Pin
order
from
upside
GPI
O #
Descr
iption
Flexible
mode0
Flexible
mode1
Flexible
mode2
Flexible
mode3
Flexible
mode4
Flexible
mode5
Flexible
mode6
Flexible
mode9
1
32
MCD
A0
GPIO32
SLV_SPI0
_CS
EINT13
PWM2
DAISYNC MC0_D
A0
MA_SPI
3_B_CS
2
33
MCD
A1
GPIO33
SLV_SPI0
_SCK
EINT14
PWM3
DAIPCMI
N
MC0_D
A1
MA_SPI
3_B_SC
K
3
34
MCD
A2
GPIO34
SLV_SPI0
_MOSI
EINT15
PWM4
DAICLK
MC0_D
A2
MA_SPI
3_B_M
OSI
4
35
MCD
A3
GPIO35
SLV_SPI0
_MISO
EINT3
PWM5
DAIPCM
OUT
MC0_D
A3
CLKO2
MA_SPI
3_B_MI
SO
5
30
MCCK GPIO30
SCL0
EINT11
PWM0
URXD1
MC0_C
K
SCL2
6
31
MCC
M0
GPIO31
SDA0
EINT12
PWM1
UTXD1
MC0_C
M0
SDA2
4.16.14.
JTAG connector CON9002
The connector CON9002 provides the standard JTAG connection. CON9002 could be enabled using the resistors
R9011 to R9021 and R9023 (see Figure 9 and Figure 8).
Table 28. JTAG connector CON9002