I/O

S

O

O1

O2

A

A1

A2

P

P1

P2

I

L

L1

L11

L12

L2

L21

L22

L2, B0, C0, P0

L21, B0, C0, P0

L22, B1, C1, P1

O

B, C, P

W, PE, AE

W1, PE1, AE1

W2, PE2, AE2

B, C, P

B1, C1, P1

B2, C2, P2

B2, C2, P2

B1

C1