GDC21D601 Datasheet, PDF (64/189 Pages) Hynix Semiconductor – 32-Bit RISC MCU

GDC21D601
6.2. TIC Test for PMU Block
Step 1.
Step 2.
Step 3.
Step 4.
Step 5.
Set-up TIC test environment, connect the TCLK to tbclk and FCLK of fclkgen to tfclk pin. Until the
mode of the PMU is changed to the TIC test mode, sys_clk has to feed the clock. It is easier to test the
sys_clk and the tbclk separately.
Reset the MCU using pin nPOR low.
Then TIC becomes the bus master
Change the mode of PMU by setting the TSTCR[1:0] to “11”.
Set value to TSTR0 for test vector, and read output value in the TSTR1 of the PMU and compare it with
desired test vector.
Figure 4. shows PMU TIC Test Environment
APB
ASB
BCLK
ARM720T
FCLK
TREQA
TIC
TREQB
TACK
TIC BOX
EBI
TBUS TCLK
SCLK_IN
PCLK _{PCLK_IN}
BCLK
tbclk
PMU
tfclk
nPOR
SYS_CLK
FCLK
TESTCLK
GEN
FCLKGEN
Reset GEN
Figure 4. TIC Test Environment
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