z85230 ZiLOG Semiconductor, z85230 Datasheet - Page 86

• Manufacturer Part Number: z85230
• Description: Enhanced Serial Communications Controller
• Manufacturer: ZiLOG Semiconductor

Table 43. Z80230 General Timing Characteristics
PS005303-0907
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16a
16b
17
18
19
20
21
22
Symbol
TdPC(REQ)
TsPC(W)
TsRXC(PC)
TsRXD(RXCr)
ThRXD(RxCr)
TsRXD(RXCf)
ThRXD(RXCf)
TsSY(RXC)
ThSY(RXC)
TsTXC(PC)
TdTXCf(TXD)
TdTxCr(TXD)
TdTXD(TRX)
TwRTXh
TwRTXI
TcRTX
TxRX(DPLL)
TcRTXX
TwTRXh
TwTRXI
TcTRX
TwEXT
TwSY
Table 43
describes the Z80230 general timing characteristics details.
Parameter
PCLK Low to W/REQ Valid
PCLK Low to Wait Inactive
RxC High to PCLK High Setup
Time
RxD to RxC High Setup Time
RxD to RxC High Hold Time
RxD to RxC Low Setup Time
RxD to RxC Low Hold Time
SYNC to RxC High Setup Time -150
SYNC to RxC High Hold Time
TxC Low to PCLK High Setup
Time
TxC Low to TxD Delay
TxC High to TxD Delay
TxD to TRxC Delay
RTxC High Width
TRxC Low Width
RTxC Cycle Time
DPLL Cycle Time Minimum
Crystal Oscillator Period
TRxC High Width
TRxC Low Width
TRxC Cycle Time
DCD or CTS Pulse Width
SYNC Pulse Width
NA
0
125
0
125
5
NA
120
120
400
50
100
120
120
400
120
120
Min.
10 MHz
200
150
150
140
300
1000
Max.
NA
0
60
0
60
-100
5
NA
80
80
244
31
100
80
80
244
70
70
Product Specification
Min.
16 MHz
Electrical Characteristics
110
180
85
85
80
1000
Z85230/Z80230
Max.
1,9
2, 9
9
9
1, 4, 9
1,9
1, 5, 9
1, 5, 9
1, 9
1, 10
2, 4, 9
2, 5, 9
9
6, 9
6, 9
6, 7, 9
7, 8, 9
3, 9
6, 9
6, 9
6, 7, 9
9
9
Notes
81