HD6433044 Datasheet, PDF (658/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

20.4.3 Selection of Waiting Time for Exit from Software Standby Mode
Bits STS2 to STS0 in SYSCR and bits DIV1 and DIV0 in DIVCR should be set as follows.
Crystal Resonator: Set STS2 to STS0, DIV1, and DIV0 so that the waiting time (for the clock to
stabilize) is at least 7 ms. Table 20-3 indicates the waiting times that are selected by STS2 to
STS0, DIV1, and DIV0 settings at various system clock frequencies.
External Clock: Any values may be set.
Table 20-3 Clock Frequency and Waiting Time for Clock to Settle
DIV1 DIV0 STS2 STS1 STS0 Waiting Time 18 MHz 16 MHz 12 MHz 10 MHz 8 MHz 6 MHz 4 MHz 2 MHz 1 MHz Unit
0 0 0 0 0 8192 states 0.46 0.51 0.65 0.8 1.0 1.3 2.0 4.1 8.2 ms
0 0 1 16384 states 0.91 1.0 1.3 1.6 2.0 2.7 4.1 8.2 16.4
0 1 0 32768 states 1.8 2.0 2.7 3.3 4.1 5.5 8.2 16.4 32.8
0 1 1 65536 states 3.6 4.1 5.5 6.6 8.2 10.9 16.4 32.8 65.5
1 0 0 131072 states 7.3 8.2 10.9 13.1 16.4 21.8 32.8 65.5 131.1
1 0 1 1024 states 0.057 0.064 0.085 0.10 0.13 0.17 0.26 0.51 1.0
1 1 — Illegal setting
0 1 0 0 0 8192 states 0.91 1.02 1.4 1.6 2.0 2.7 4.0 8.2 16.4 ms
0 0 1 16384 states 1.8 2.0 2.7 3.3 4.1 5.5 8.2 16.4 32.8
0 1 0 32768 states 3.6 4.1 5.5 6.6 8.2 10.9 16.4 32.8 65.5
0 1 1 65536 states 7.3 8.2 10.9 13.1 16.4 21.8 32.8 65.5 131.1
1 0 0 131072 states 14.6 16.4 21.8 26.2 32.8 43.7 65.5 131.1 262.1
1 0 1 1024 states 0.11 0.13 0.17 0.20 0.26 0.34 0.51 1.0 2.0
1 1 — Illegal setting
1 0 0 0 0 8192 states 1.8 2.0 2.7 3.3 4.1 5.5 8.2 16.4 32.8 ms
0 0 1 16384 states 3.6 4.1 5.5 6.6 8.2 10.9 16.4 32.8 65.5
0 1 0 32768 states 7.3 8.2 10.9 13.1 16.4 21.8 32.8 65.5 131.1
0 1 1 65536 states 14.6 16.4 21.8 26.2 32.8 43.7 65.5 131.1 262.1
1 0 0 131072 states 29.1 32.8 43.7 52.4 65.5 87.4 131.1 262.1 524.3
1 0 1 1024 states 0.23 0.26 0.34 0.41 0.51 0.68 1.02 2.0 4.1
1 1 — Illegal setting
1 1 0 0 0 8192 states 3.6 4.1 5.5 6.6 8.2 10.9 16.4 32.8 65.5 ms
0 0 1 16384 states 7.3 8.2 10.9 13.1 16.4 21.8 32.8 65.5 131.1
0 1 0 32768 states 14.6 16.4 21.8 26.2 32.8 43.7 65.5 131.1 262.1
0 1 1 65536 states 29.1 32.8 43.7 52.4 65.5 87.4 131.1 262.1 524.3
1 0 0 131072 states 58.3 65.5 87.4 104.9 131.1 174.8 262.1 524.3 1048.6
1 0 1 1024 states 0.46 0.51 0.68 0.82 1.0 1.4 2.0 4.1 8.2
1 1 — Illegal setting
: Recommended setting
649