tmpr4937 TOSHIBA Semiconductor CORPORATION, tmpr4937 Datasheet - Page 517

• Manufacturer Part Number: tmpr4937
• Description: 64-bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

EEPROM_SK High Time
EEPROM_SK Low Time
EEPROM_DO Output Delay Time
EEPROM_DI Input Setup Time
EEPROM_DI Input Hold Time
EEPROM_CS Output Delay Time
DMADONE * Delay
DMADONE * Input Pulse Width Time
*1) The TX4937 controls EEPROM and its control signal synchronous to the falling edge of
21.5.7
21.5.8
EEPROM_SK. Since the EEPROM operates at the rising edge of EEPROM_SK, you do not have
to take the MIN side of EEPROM_DO into account.
DMADONE *
SYSCLK
DMADONE *
PCI EEPROM Interface AC characteristics
DMA Interface AC characteristics
Item
Item
EEPROM_SK
EEPROM_DO
EEPROM_DI
EEPROM_CS
Figure 21.5.8 Timing Diagram: PCI EEPROM Interface
* 1)
Figure 21.5.9 Timing Diagram: DMA Interface
t
t
(Tc = 0 ~ 70°C, V
(Tc = 0 – 70°C, V
VAL_DONE
PW_DONE
Symbol
t
t
t
t
t
t
HIGH_EPSK
LOW_EPSK
VAL_EPDO
SU_EPDI
HO_EPDI
VAL_CS
Symbol
t
VAL_DONE
C
SYSCLK (C
Boot configuration
ADDR[2]=H
Boot configuration
ADDR[2]=L
L
=50 pF
t
t
SU_EPDI
C
C
C
C
HIGH_EPSK
L
L
L
L
21-11
=50 pF
=50 pF
=50 pF
=50 pF
CCIO
CCIO
t
t
Conditions
PW_DONE
VAL_EPCS
L
Chapter 21 Electrical Characteristics
=50 pF) reference
Conditions
= 3.3 V ± 0.2 V, V
= 3.3 V ± 0.2 V, V
t
t
LOW_EPSK
VAL_EPDO
t
HO_EPDI
CCInt
CCInt
1/4 × t
t
MCP
Min.
Min.
MCP
500
500
100
100
100
= 1.5 V ± 0.1 V, V
= 1.5 V ± 0.1 V, V
⎯
⎯
× 1.1
× 1.1
Max.
100
⎯
⎯
⎯
⎯
⎯
Max.
12
⎯
⎯
SS
SS
Unit
= 0 V)
= 0 V)
ns
ns
ns
ns
ns
ns
Unit
ns
ns
ns