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1
2
N
N
NDF (4 bits)
H1 byte after second byte
1
0
Remark NDF:
New Data Flag. Enable or disable command when the pointer value is to be changed.
Because the µPD98413 does not change the pointer value, "0110," that disables the pointer
value, is always transmitted.
(NDF Enable = 1001, NDF Disable = 0010, 0110, 0100, 0111, 1110)
Indicates the type of SPE. The µPD98413 inserts the bit set into the SS[1:0] bits of the
SS bit:
MDPTRT register. The default value is "00".
Pointer: Indicates the position of the first byte J1 of POH and requests Frequency Justification
operation.
I (Increment bit):
D (Decrement bit): Requests Negative Justification operation.
Concatenation indication: Indicates concatenation.
Contents of H1 through H3 Bytes Transmitted by µ µ µ µ PD98413
1st byte
2nd and onward
Remark
The pointer value is a binary number in the range of 0 to 782 and indicates the address of the first byte
(J1) of SPE. The offset value increments by 12 bytes as shown in Figure 3-8. If the pointer value is 0,
for example, it indicates that SPE starts from the byte position immediately after the H3 byte. If the
pointer value is 522 (20AH), SPE starts from the position immediately after the 11th Z0.
42
CHAPTER 3 FUNCTIONAL OUTLINE
Figure 3-7. Format of Pointer (H1 through H3 Bytes)
1st H1 byte
3
4
5
6
7
8
9 10 11 12 13 14 15 16
N
N
S
S
I
D
I
D
SS
H2 byte after second byte
0
1
S
S
1
1
1
1
Concatenation indication
Requests Positive Justification operation.
H1 Byte
0110 SS10
1001 SS11
PRELIMINARY
1st H2 byte
I
D
I
D
I
D
Pointer (10 bits)
1
1
1
1
1
1
H2 Byte
H3 Byte
0000 1010
0000 0000
1111 1111
0000 0000
All H3 bytes
Negative stuff bytes
NEC confidential and Proprietary
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