R01UH0823EJ0100 Rev.1.00 Page 1261 of 1823
Jul 31, 2019
RX23W Group 36. CAN Module (RSCAN)
36.2.81 Global Test Protection Unlock Register (GLOCKK)
Modify the GLOCKK register only in global test mode.
LOCK[15:0] Bits (Protection Unlock Data)
Write the protection unlock data shown in
Table 36.3 to the LOCK[15:0] bits in succession to allow writing 1 to the
target bit.
Writing data to the CAN's register area (000A 8300h to 000A 839Fh) except the RAM area after protection is unlocked
enables protection again.
Protection is not enabled even by reading data from the CAN's register area or reading/writing data from/to other areas.
36.2.82 RAM Test Register r (RPGACCr) (r = 0 to 127)
Modify the RPGACCr register in global test mode with the GTSTCTRL.RTME bit set to 1 (RAM test is enabled). The
RPGACCr register is readable and writable when the GTSTCTRL.RTME bit is set to 1.
This register can be read/written when the GRWCR.RPAGE bit is 0.
Address(es): RSCAN.GLOCKK 000A 8394h
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
LOCK[15:0]
Value after reset:
0000000000000000
Bit Symbol Bit Name Description R/W
b15 to b0 LOCK[15:0] Protection Unlock Data Write protection unlock data to use test functions. These bits
are read as 0000h.
W
Table 36.3 Protection Unlock Data for Test Functions
Test
Function Protection Unlock Data 1 Protection Unlock Data 2 Target Bit
RAM test 7575h 8A8Ah GTSTCTRL.RTME bit
Address(es): RSCAN.RPGACC0 to RSCAN.RPGACC127 000A 8580h to 000A 867Eh
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
RDTA[15:0]
Value after reset:
0000000000000000
Description R/W
Data can be read and written in CAN RAM. R/W
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