Register Description; Cgprotect] (Cg Write Protection Register); Cgosccr] (Oscillation Control Register) - Toshiba TXZ+ Series Reference Manual

1.4.2. Register description

1.4.2.1. [CGPROTECT] (CG write protection register)

Bit Bit Symbol
31:8 -
7:0 PROTECT[7:0]

1.4.2.2. [CGOSCCR] (Oscillation control register)

Bit Bit Symbol
31:20 -
19 IHOSC2F
18:17 -
16 IHOSC1F
15:10 -
9 OSCF
8 OSCSEL
7:4 -
3 IHOSC2EN
2:1 EOSCEN[1:0]
0 IHOSC1EN
Note1: When the setting is modified, confirm whether the written value has been reflected to the
[CGOSCCR]<OSCF> bit before executing the next operation.
Note2: Setting cannot be changed, when it is [SIWDxOSCCR]<OSCPRO> = 1 (write protection of SIWDT is
effective).
Note3: When using the oscillator connection, set these bits (external high speed oscillation) to "01".
Note4: To wait stabilizing oscillation of an internal high speed oscillator1 (IHOSC1), use a warming up timer
and confirm [CGWUPHCR]<WUEF> instead of <IHOSCF1>.
After
Type
reset
0 R Read as "0"
Control write protection for the CG register (all registers except
this register)
0xC1 R/W
0xC1: CG Registers are write enabled.
Other than 0xC1: Sets write protection (Protect enable)
After
Type
reset
0 R Read as "0"
Indicates the stability flag of an internal oscillation for IHOSC2
0 R 0: Stopping or being in warm up
1: Stable oscillation
0 R Read as "0"
Indicates the stability flag of an internal oscillation for IHOSC1.
1 R 0: Stopping or being in warm up
1: Stable oscillation
0 R Read as "0"
Indicates high speed oscillator for f
0 R 0: Internal high speed oscillator 1 (IHOSC1)
1: External high speed oscillator (EHOSC)
Selects a high speed oscillation for f
0 R/W 0: Internal high speed oscillator 1 (IHOSC1)
1: External high speed oscillator (EHOSC)
0 R Read as "0"
Enables the internal high speed oscillator 2 (IHOSC2) (Note2)
0 R/W 0: Stop
1: Oscillation
Selects the operation of the external high speed oscillator.
(EHOSC) (Note3)
00: External oscillator is not used.
0x0 R/W
01: Uses the external high speed oscillator. (EHOSC)
10: Uses the external clock. (EHCLKIN)
11: Reserved
Internal high speed oscillator 1. (IHOSC1)
1 R/W 0: Stop
1: Oscillation
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TMPM3H Group(1)
Clock Control and Operation Mode
Function
Function
selection status.
OSC
. (Note1)
OSC
TXZ+ Family
2022-05-10
Rev. 1.3