Grain GM8136 - Description of EVB Connectors; Jumper Settings; CPU ICE Connector; Table 2-1. Function List of Jumper Settings

GM8136/GM8136S EVB User Guide
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2.1 Description of EVB Connectors
2.1.1 Jumper Settings
GM8136/GM8136S EVB contains several jumper settings .JP0, JP1 can be found in Switch SW1. JP6, JP7,
JP8, JP19 can be found in Switch SW2. When the reset signal changes from low to high, GM8136/GM8136S
will latch the logic value of the jumper settings. These latched values will affect the behavior of
GM8136/GM8136S. For the IPCAM application, the value of JP6 must be logic low. As for JP7, JP8, JP19
depend on the user application. The definitions of the jumper settings are listed and described in Table 2-1.
Table 2-1. Function List of Jumper Settings
Pin No. Signal Name Description
JP0 (Internal pull-low)/
JP1 (Internal pull-low)
PLL1 setting
00：CPU400 MHz DDR800 MHz (Default)
01：CPU810 MHz DDR1080 MHz
10：CPU500 MHz DDR1000 MHz
11：CPU540 MHz DDR1080 MHz
JP6 Firmware update mode
0：Normal (Default)
1：Firmware update mode
JP7 (Internal pull-low) SPI / parallel NAND flash selection
0：SPI NOR Flash (Default)
1：SPI NAND Flash
JP8 (Internal pull-up) Power on Heat
0：auto PH_En
1：non auto PH_En (Default)
JP19 (Internal pull-low) SPI flash 3/4-byte mode selection
0：select 3 byte mode (Default)
1：select 4 byte mode
2.1.2 CPU ICE Connector
CPU ICE connector (J11) can be connected to Open-ICE or Multi-ICE. Table 2-2 and Table 2-3 list and
describe the pin definition of the CPU ICE connector.
Table 2-2. Pin Definition of CPU ICE Connector