CHAPTER 3 FUNCTIONAL OUTLINE
PRELIMINARY
NEC confidential and Proprietary
42
Figure 3-7. Format of Pointer (H1 through H3 Bytes)
1 2 3 4 5 6
7 8 9
10
11 12
13
14 15 16
N N N N S S I D I
D
I D I
D I D
Negative
stuff
bytes
1 0 0 1 S S 1 1 1
1
1 1
1
1 1 1
Remark
NDF:
New Data Flag. Enable or disable command when the pointer value is to be changed.
Because the
µ
PD98413 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)
SS bit: Indicates the type of SPE. The
µ
PD98413 inserts the bit set into the SS[1:0] bits of the
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):
Requests Positive Justification operation.
D (Decrement bit): Requests Negative Justification operation.
Concatenation indication: Indicates concatenation.
Contents of H1 through H3 Bytes Transmitted by
µµµµ
PD98413
H1 Byte
H2 Byte
H3 Byte
1st byte
0110 SS10
0000 1010
0000 0000
2nd and onward
1001 SS11
1111 1111
0000 0000
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.
SS
NDF (4 bits)
H1 byte after second byte
H2 byte after second byte
Pointer (10 bits)
Concatenation indication
1st H1 byte
1st H2 byte
All H3 bytes
Summary of Contents for NEASCOT-P65
Page 4: ...PRELIMINARY NEC confidential and Proprietary 4 MEMO ...
Page 8: ...PRELIMINARY 8 MEMO ...
Page 35: ...PRELIMINARY NEC confidential and Proprietary 35 MEMO ...
Page 135: ...CHAPTER 4 INTERFACES PRELIMINARY NEC confidential and Proprietary 135 ...
Page 166: ...CHAPTER 5 REGISTERS PRELIMINARY NEC confidential and Proprietary 166 5 2 Register summary ...
Page 167: ...CHAPTER 5 REGISTERS PRELIMINARY NEC confidential and Proprietary 167 ...
Page 168: ...CHAPTER 5 REGISTERS PRELIMINARY NEC confidential and Proprietary 168 ...
Page 303: ...CHAPTER 5 REGISTERS PRELIMINARY NEC confidential and Proprietary 303 MEMO ...
Page 317: ...CHAPTER 6 JTAG BOUNDARY SCAN PRELIMINARY NEC confidential and Proprietary 318 MEMO ...