UPD30121 NEC [NEC], UPD30121 Datasheet - Page 68

• Manufacturer Part Number: UPD30121
• Description: VR4121TM 64-/32-BIT MICROPROCESSOR
• Manufacturer: NEC [NEC]

68
DDOUT output pulse width
DDIN input pulse width
SDO output delay time
SDI setup time
SDI hold time
FS setup time
FS hold time
(20) Debug serial interface parameter
Note N: Transfer rate of baud rate per bit set to the BPR0 bits of the BPRM0REG register.
(21) HSP interface parameter
Notes 1. The reference clock of this parameter is the rising edge of HSPSCLK signal.
2. The reference clock of this parameter is the falling edge of HSPSCLK signal.
Note 2
Note 2
Note 2
Note 2
DDOUT
(output)
(input)
Parameter
DDIN
Parameter
Note 1
Note
BPR0 (2:0) Bits
Note
111
110
101
100
011
010
001
000
Data Sheet U14691EJ1V0DS00
Symbol
Baud Rate (bps)
Symbol
t
t
DDOUT
t
t
t
t
t
SDOD
DDIN
SDIH
SDIS
FSIS
FSIH
115,200
57,600
38,400
19,200
9,600
4,800
2,400
1,200
t
t
DDOUT
DDIN
Condition
Condition
(9/16)
N – 1
MIN.
MIN.
25
20
0
0
104.16
208.33
416.66
833.33
N ( s)
17.36
26.04
52.03
N
8.68
MAX.
MAX.
N + 1
15
PD30121
Unit
Unit
ns
ns
ns
ns
ns
s
s