Conventions - Toshiba TXZ+ Series Reference Manual

Conventions

● Numeric formats follow the rules as shown below:
Hexadecimal:
Decimal: 123 or 0d123 – Only when it needs to be explicitly shown that they are decimal numbers.
Binary: 0b111 – It is possible to omit the "0b" when the number of bit can be distinctly understood from a
sentence.
● "_N" is added to the end of signal names to indicate low active signals.
● It is called "assert" that a signal moves to its active level, "deassert" to its inactive level.
● When two or more signal names are referred, they are described like as [m: n].
Example: S[3: 0] shows four signal names S3, S2, S1 and S0 together.
● The characters surrounded by [ ] defines the register.
Example: [ABCD]
● "n" substitutes suffix number of two or more same kind of registers, fields, and bit names.
Example: [XYZ1], [XYZ2], [XYZ3]  [XYZn]
● "x" substitutes suffix number or character of units and channels in the Register List.
In case of unit, "x" means A, B, and C ...
Example: [ADACR0], [ADBCR0], [ADCCR0]  [ADxCR0]
In case of channel, "x" means 0, 1, and 2 ...
Example: [T32A0RUNA], [T32A1RUNA], [T32A2RUNA]  [T32AxRUNA]
● The bit range of a register is written like as [m: n].
Example: Bit[3: 0] expresses the range of bit 3 to 0.
● The configuration value of a register is expressed by either the hexadecimal number or the binary number.
Example: [ABCD]<EFG> =0x01 (hexadecimal), [XYZn]<VW> =1 (binary)
● Word and Byte represent the following bit length.
Byte: 8 bits
Half word:
Word: 32 bits
Double word:
● Properties of each bit in a register are expressed as follows:
R:
W:
R/W: Read and Write are possible
● Unless otherwise specified, register access supports only word access.
● The register defined as reserved must not be rewritten. Moreover, do not use the read value.
● The value read from the bit having default value of "-" is unknown.
● When a register containing both of writable bits and read-only bits is written, read-only bits should be
written with their default value, In the cases that default is "-", follow the definition of each register.
● Reserved bits of the Write-only register should be written with their default value.
In the cases that default is "-", follow the definition of each register.
● Do not use read-modified-write processing to the register of a definition which is different by writing and
read out.
0xABC
16 bits
64 bits
Read only
Write only
Clock Control and Operation Mode
7 / 64
TXZ+ Family
TMPM4K Group(2)
2021-06-15
Rev. 1.1